Ever wanted decor that makes mathematicians quietly weep? Behold: the Klein Bottle — a handmade borosilicate glass object with no true “inside” or “outside,” existing in theory in four dimensions, but doing its best to cope in three.

This one includes its wooden display base and hose (unused), and is in new condition. It makes an excellent gift for math teachers, engineers, topology nerds, tabletop/DnD dungeon decor, therapists who moonlight as physicists, or anyone who enjoys impossible objects.

Details

• Material: Borosilicate glass (unleaded, durable)

• Height: ~7” (varies slightly due to handmade nature)

• Condition: Brand new, opened for photos only

• Includes: Wooden display base + hose + box + paperwork

• Ships: Packed with absurd care (objects have fragile egos)

Suggested Use Cases

• Desk trophy for an engineer in denial

• Impossible vase for people who date engineers

• DnD potion bottle / arcane bauble

• Conversation piece for coffee tables

• Visual aid for topology lectures, science classes, math classes

• Gift for the person who “doesn’t want anything”

Note: While Klein bottles theoretically require a fourth spatial dimension to properly exist, this one is doing its best. Please clap.

Smoke-free home. Ships 1 business day.