Never worry about flat tyres again!
When Prevent-A-Flat Tyre Sealant is squirted into your tyres the sealant bonds to the tyre forcing the puncture to seal.
If the tyre ever goes flat, all you need to do is pump them up, and spin and the Prevent-A-Flat will seal the holes as long as you remove the problem items, such as bindies, 4 corner jacks, etc from the tyre before hand.
A 250ml bottle will roughly do two 26 inch bike tubes.