Brand New 10x2.50 tire + Tube compatible with 10" Wheel Electric Scooter,Pack of 2 Sets Specifications(Manual Measurements Are Only for Reference): Tire & Tube Size: 10 x 2.50 Tire Outer Diameter: 246mm (9.68") Tire Inner diameter: 153m (6") Tire Side width: 60mm (2.36") The maximum inflation pressure (P.S.I.): 45P.S.I (310KPa 3.1BAR) Inner Tube Valve Stem: Angled Stem TR87 This inner tube is made of isobutylene isoprene rubber, which is better in air tightness, elastic damping and aging resistance than natural rubber. Package includes: 2 x Tires 2 x Tubes