Stop-A-Flat Puncture Proof, Thorn-resistant, No-flat, Bicycle Tube, 20 x 2.125
STOP-a-FLAT offers a range of non-pneumatic inner tubes which are impossible to puncture. A simple one-off and low cost solution. Ideal for children's bicycles, buggies, pushchairs and cycle trailers. This latest high tech solution provided hard wearing, long lasting and sustainability. It is inserted in the same way as a normal inner tube using your existing tire.