Klein bottle

$25.19 ~~$39.99~~ In stock

A mind-bending mathematical marvel, the Klein bottle has no inside, no outside, and no beginning. Handcrafted in glass, it is a true conversation piece for curious minds who love science and beauty in equal measure.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.2 / 5 · 5 reviews)

James ★★★★★ Oct 22, 2026

The way light plays through the glass makes it look like it’s continuously curving into itself, and it's surprisingly sturdy for such delicate-looking craftsmanship. My friends keep picking it up to figure out where the opening actually is.

Michael ★★★★★ Oct 20, 2026

Pulling this glass Klein bottle out during dinner parties always gets a few puzzled looks—the way the neck loops back into itself is genuinely mesmerizing. The glass has a satisfying heft and clarity that makes the impossible geometry even more surreal to trace with your fingers. Perfect for anyone

Eva ★★★★☆ Oct 19, 2026

I was a bit skeptical about the whole "no inside" thing, but it really makes your brain twist when you look at it. The glass is crystal clear and the craftsmanship is solid, though I wish the opening was just a tad wider to see through more easily.