Are your balloons topologically trivial? Do you party harder than a mere spherical balloon can handle? Then you need... a torus!

These Toroidal balloons have a much more interesting structure than a standard-issue sphere, and can be used to:

• Liven up parties
• Decorate your home or office
• sketch non-planar graphs and maps that require up to 7 colours

This pack contains 5 balloons in assorted colours. Fully inflated, they measure 16" across and have an Euler Characteristic of zero.

Balloon colours will be chosen at random (although we can't guarantee a truly stochastic selection process).