Aisle 6No. 95 of 460
Splashery
Klein Bottle
200,000 small parts. Assembled in your browser.
Empty. Now look down.

Swipe across the pack to tear it open.
Press and hold. It pulls itself together.
Let go to drop it.
It stays in its pack here. The Playground has the rest.
Math · Built from a recipe
Klein Bottle
A Klein bottle is a surface with no inside and no outside.
Play with it in the Playground
How to play
Tap to send water through. Set the glow in the Splash tab.
Toy facts
- Item
- No. 95 of 460
- Shelf
- Aisle 6, Math
- Kind
- Built from a recipe
- Small parts
- 200,000
- Sound
- Yes
- Batteries
- None
- Assembly
- It does that itself
- Licenses
- CC0
- Price
- $0.00
Small parts are the splats in its usual build on a computer. A phone may draw fewer.
Its controls
| Control | Kind | Range | Start |
|---|---|---|---|
| Send water through | Tap | ||
| Glow | Slider | 0 to 100% | 50% |
| Surge | Button | ||
| Glass | Color | #3fb6c9 |
About it
A Klein bottle is a surface with no inside and no outside. Its neck bends around and passes through its own side to join the bottom from within, so an ant crawling on it could reach every part of it without ever crossing an edge. Felix Klein described it in 1882. A true Klein bottle needs four dimensions; in our world its neck has to cut through the wall.
Tap it and a surge of glowing water pours in at the base, runs up the body, through the neck and around into the bottom, then fades. Set the glow, or pick the color of the glass, in the Splash tab.
Details
- Splats
- Opens at 200,000 at Mid Detail, 48,000 at Low, and up to 200,000 at Max
Sources and credits
| Work | By | License |
|---|---|---|
| Bottle Slosh 2 (klein-bottle-slosh.mp3) | alegemaate | CC0 1.0 |



