Who am I?

My skeleton is designed for lightness, but I cannot fly. I move in a circular fashion. The muscles that move me can be removed, and when they are I tend to collapse if not propped up. I need air to function properly, but I will not suffocate if I have none.

Originally posted by AThousandYoung
My skeleton is designed for lightness, but I cannot fly. I move in a circular fashion. The muscles that move me can be removed, and when they are I tend to collapse if not propped up. I need air to function properly, but I will not suffocate if I have none.

Originally posted by sonhouse
An accordion? Or a circular fan?

Is it some kind of sea creature? I thought Jelly Fish, but they don't have skeletons.

Phil.

Originally posted by MrPhil
Is it some kind of sea creature? I thought Jelly Fish, but they don't have skeletons.

Phil.

Originally posted by AThousandYoung
Nope.

I move quickly over smooth terrain!

Originally posted by joe shmo
A tire

Originally posted by AThousandYoung
My skeleton is designed for lightness, but I cannot fly. I move in a circular fashion. The muscles that move me can be removed, and when they are I tend to collapse if not propped up. I need air to function properly, but I will not suffocate if I have none.

Originally posted by TheMaster37
A bicycle. But that doesn't move in a circular fashion 😞

Hovercraft? The air circulates. 😵

Originally posted by AThousandYoung
The wheels do! GJ.

Originally posted by forkedknight
It needs to be a wheel with a pneumatic tire to fit the whole description.

Something tells me this is a trick question. Is it someone rather than something ?

GRANNY.

Originally posted by smw6869
Something tells me this is a trick question. Is it someone rather than something ?

GRANNY.