Rolson replacement inner tube for bicycle tyres, it is made from butyl rubber that is known for its durability and air tightness. The inner tube is fitted with a Schrader valve and protective cap, with tube dimensions of 26" x 2.1 - 2.5". We recommend checking the valve and size is compatible with your bicycle tyres. Also ensure the tyre, rim and wheel are in good condition with no visible damage before fitting the new inner tube. Never over inflate the tyre, always check the maximum pressure for your bicycle tyre. Features: Bicycle inner tube Schrader valve and protective cap Fitting size 26" x 2.1 - 2.5" Made from strong butyl rubber Specifications: Colour: Black Guarantee:1 year Material: Butyl Rubber Model Number: 43253