Handmade Glass Klein Bottle

The Handmade Glass Klein Bottle was $90 when we checked it on 2026-08-03. The median of the 7 prices we have recorded for it is $89.

This elegantly curved glass Klein bottle will intrigue and delight any mathematician, physicist, or science buff. Like a Möbius strip, this Klein bottle has only one side. In addition, a Klein bottle has no edge - the connection from "inside" to "outside" is smooth, and the bottle has no lip. To a mathematician, this is zero-volume because it doesn't divide the universe into two parts. Despite this mathematical property, it's possible to fill it with water, although I don't recommend it, since it's difficult to dry (you can't get a cloth "inside") Each Klein bottle is hand blown from clear glass, so the exact shape and dimensions may vary slightly. Along with the glass Klein bottle, I include entertaining and (possibly) educational documentation, and a removable calibration decal.

Editor's note

A bottle with no inside that is also microwave safe is the funniest sentence in this whole catalog. The math nerd in your life needs one.

Handmade Glass Klein Bottle price history

7 weekly checks of our own, from 2026-06-26 to 2026-08-03. How our price tracking works

$90.00$89.00

Typical

Jun 26Jul 6Jul 13Jul 20Jul 27Aug 3

Lowest

$89.00

Jun 26, 2026

Typical

$89.00

median of 7 weekly checks

Highest

$90.00

Jul 27, 2026

Latest

$90.00

checked Aug 3, 2026

Typical price is the median of the 7 weekly checks we have taken, not the manufacturer list price. Every discount figure on this site is measured against it.

Every observation (7)

Date	Price	Source
Jun 26, 2026	$89.00	Weekly check
Jun 29, 2026	$89.00	Weekly check
Jul 6, 2026	$89.00	Weekly check
Jul 13, 2026	$89.00	Weekly check
Jul 20, 2026	$89.00	Weekly check
Jul 27, 2026	$90.00	Weekly check
Aug 3, 2026	$90.00	Weekly check

About this item

Ideal gift for a math or physics student, scientist, or computer programmer. Does not work as mousetrap.
From Cliff Stoll, the Klein bottle guy - made from quality, low expansion borosilicate glass - microwave safe. Clear, non-colored, transparent glass.
Zero volume, one-sided, nonorientable, 3-dimensional, unbounded, locally Euclidean
About 8" tall, 4" diameter (20x10cm), weighs about 8oz (230g), ∇·B=0 and ∇×E=−dB/dt
Rustproof, Batteries not needed, Riemannian, baryonic, satisfies Gauss-Bonnet theorem, free of any magnetic monopoles.

Details

Brand Name: Acme Klein Bottle
Model Name: Glass Klein
Item Weight: 8 ounces
Model Number: 3.14
Material Type: Borosilicate Glass
Material Type Free: Bisphenol A (BPA) Free
Capacity: 8 ounces

#novelty

Handmade Glass Klein Bottle: common questions

Is the Handmade Glass Klein Bottle worth it?

A bottle with no inside that is also microwave safe is the funniest sentence in this whole catalog. The math nerd in your life needs one. Its Amazon listing shows 4.9 out of 5 stars across 359 ratings, which is the retailer's figure and not our verdict.

How much does the Handmade Glass Klein Bottle cost?

The Handmade Glass Klein Bottle was $90 when we checked it on 2026-08-03. The median of the 7 prices we have recorded for it is $89. Prices change often, so the live retailer link carries the current number.

Is now a good time to buy the Handmade Glass Klein Bottle?

At $90 the Handmade Glass Klein Bottle is near the median of the 7 prices we have recorded for it. The lowest we have seen is $89 on 2026-06-26, so waiting for a repeat of that would save roughly $1.

What is the lowest price the Handmade Glass Klein Bottle has been?

The lowest price on our record for the Handmade Glass Klein Bottle is $89 on 2026-06-26, and the highest is $90 on 2026-07-27. That record is 7 weekly checks we took ourselves.