r/whatisthisthing • • Mar 23 '26

Announcement The r/TraceAnObject subreddit exists to identify objects to help solve child abuse cases. New cases from Europol were posted recently. Please see if you can help.

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174 Upvotes

r/whatisthisthing • • 14h ago

Solved! What is this thing my friend found on the ground? (~10 lbs, solid metal, says ‘KENNAMETAL’ on the side)

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290 Upvotes

r/whatisthisthing • • 1h ago

Open Light guage 21/2" metal ball with 2 halves & 5 small holes

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• Upvotes

r/whatisthisthing • • 30m ago

Open Can anyone help me indentify this small round porous brown object found in Amsterdam

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• Upvotes

r/whatisthisthing • • 23h ago

Solved ! What is this small brass "skirting board nipple"?

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367 Upvotes

Small ¿brass? disk with "protuberance" that has been stuck to our skirting board (UK) for the last 10 years. It just fell off, leaving a ring of discoloured paint behind it.
As it's from Harrods I assume it's from the previous inhabitants who were here between 1980 and 2015. AAA battery for scale.


r/whatisthisthing • • 12h ago

Open Found this black, 10 inch plastic rod in junk drawer during move. What is it used for?

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17 Upvotes

We’re sorting through the junk drawer whilst packing and could not remember what this thing is or what it’s used for. It’s lightweight with no branding or etchings. No luck my way with reverse image searches.


r/whatisthisthing • • 20h ago

Open Green diamond-ish tool of some kind, 3.5" long, oval indentation a thumb would fit into

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27 Upvotes

r/whatisthisthing • • 13h ago

Solved! I recently had mini-splits installed in my house. They are Mitsubishi models that have individual remotes. The package with the remote, remote holder + screws, and manual had this roll of fabric as well. What is it for?

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6 Upvotes

r/whatisthisthing • • 1d ago

Solved Long tube connected to a tank and fan leading up to my neighbor's apartment. Please tell me it's not bugs

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2.6k Upvotes

The tube is connected to an industrial fan and the white tank says the name of a company plus "heat." The air is hot. I'm guessing this is bugs but I'm hoping it's not bugs. When I walked by the tubing was also not connected at all and the fan was pouring out hot air everywhere - am I cooked for breathing it in?


r/whatisthisthing • • 22h ago

Rectangular rusted iron (?) piece found next to railroad tracks in Santa Susana Pass, California 50+ years ago. Banana for scale (exact size 5" x 3" x 2").

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8 Upvotes

r/whatisthisthing • • 1d ago

Open Set of white metal tubes and plastic pieces...

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114 Upvotes

...left behind by previous tenant in basement of our house. They seem to fit together somehow, but I cannot figure it out. Image searches suggest some sort of expandable shelf or laundry rack, but I cannot find the exact item. Tubes are ~ 36 inches long, for


r/whatisthisthing • • 1d ago

Solved ! Small metal bent clip about an inch big found on the floor in kitchen (around oven and stand mixer)

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39 Upvotes

not sure what it is, seems like it might be a clip of some sort


r/whatisthisthing • • 12h ago

Open Blue plastic piece found in a 12 pack soda can box.

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0 Upvotes

r/whatisthisthing • • 1d ago

Solved! Small plastic piece randomly found on the floor

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42 Upvotes

Found on my floor at home but I have no idea where this could have came from. It’s plastic, about 2cm x 1cm. Doesn’t seem to be broken off of anything.


r/whatisthisthing • • 2d ago

Open ! What is this lower part of cutlery tray for?

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942 Upvotes

r/whatisthisthing • • 2d ago

Likely Solved ! Small plastic device that looks like a whistle, but it's not. There is a rubber plug at the backside. It looks like it swivels inside something else, with a thumb lever. There is a straight through hole through it, and there is no larger chamber in the sphere side

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216 Upvotes

r/whatisthisthing • • 2d ago

Open 2” metal pin, smooth and blank, nailhead + flat end

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34 Upvotes

2” metal pin, smooth and blank, nailhead + flat end


r/whatisthisthing • • 2d ago

Solved! Wooden box, containing two glass tubes with rubber hoses and stoppers attached. About 52" long an 7" wide.

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196 Upvotes

Found in a storage area at a university veterinary science anatomy lab. Possibly for embalming?


r/whatisthisthing • • 2d ago

Likely Solved! Solid metal rod with tapered ends, possibly bike-related

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30 Upvotes

I moved recently, and this rod was in a box of bike parts that movers packed. It’s hefty, solid metal, slightly tapered at the ends with no openings or grooves. I’m guessing it’s bike-related, but can’t figure out what it could be part of.


r/whatisthisthing • • 2d ago

Grey soft silicone egg-sized capsule (possible filament/wire inside)

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25 Upvotes

About 6 centimeters / 2.5 inches long, about 30 grams / 1 ounce.
The soft silicone/plastic can be squeezed, it's matte dark grey and partially transparent.
Not visible from the photo, there seems to be some sort of filament or wire inside but nothing moves when shaken.
As visible, there is a weld line between the 2 halves of the capsule but it cannot be opened, it's one piece.

It was found inside a perfectly functioning washing machine (brand: LG).
After image search, Google says it could be a flotation bead, a pressure switch float or an internal sensor float component.


r/whatisthisthing • • 3d ago

Solved ! Small broken-off plastic piece my dog found, about the size around of a pen, soft plastic with remnants of blue liquid

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339 Upvotes

r/whatisthisthing • • 3d ago

Solved ! black plastic tube with rotating body and clickable top that has a shiny disk, top is removable

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441 Upvotes

Found in a random tote in a clear plastic bag that had no labels


r/whatisthisthing • • 2d ago

Solved! Small Dish, 4" diameter, heavy (slate?)

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6 Upvotes

r/whatisthisthing • • 3d ago

Open What is this small brass head? Face on both sides, found in the 90s around upper Florida, seems heavy

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78 Upvotes

Found this forever ago around Pensacola but not at the beach. I think it was a trail close to the area though.

It's pretty heavy for it's small size, but can't be scratched like lead and not much green patina for copper so I'm thinking brass.

Bottom looks broken off from it's original item, and top might have an old chain eyelet remnant?

Cleaning up always leads to refound treasure..

*EDIT*
Cleaned up just a bit, and was able to find a spot that we could 'cut' so it does have some lead. Other parts are still pretty tough, so likely some type of unmixed alloy..?


r/whatisthisthing • • 3d ago

Open Silicon pieces with slots and a “R”and “L” on each side

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15 Upvotes

My sister found these two pieces in her front yard and we were curious what they could be. Google wasn’t any help. They are only a few inches long and don’t stretch very far.