Feature: 1. Wide Applicability: It has a wide range of applicability, suitable for hand held carts, lawn mowers, and scooters. 2. Manufacturing Material: Made of high quality rubber material, stable internal structure, strong flexibility, can fully meet the international standard air pressure. 3. High Performance: Higher safety performance than ordinary inner tube, and longer service life. 4. Safe Riding: Rubber inner tubes absorb vibrations on bumpy roads to ensure a comfortable and safe ride. 5. Diverse Features: It has good sealing performance, ozone resistance, anti aging, shock absorption and electrical insulation advantages. 6. Easy to Use: Without any difficult requirements even though you use it for the first time. Specification: Item Type: 2.50‑4 Rubber Inner Tube Weight: Approx.159g / 5.6oz Material: Rubber Valve: Bent ValveWheel Specification: 2.50-4. Package List: 1 x 2.50-4 Inner Tube Note: Before installing the inner tube, check that there is no burr at the opening of the rim and the tyre fitting tool is not incisive to avoid puncturing and scratching the inner tube.