Feature●Inner tube for pram, pushchair, buggy, bike, balanced bike ;●compatible with 270x47-203 (10 1/2 x 17/8") Jane Slalom Pro, Powertwin, Bugaboo Donkey ;●Schrader valve type for easy inflation ;●Quality material, butyl rubber ;Description Inner tube 270x47-203 (10 1/2 x 1 7/8 inch);