MEETLOCKS 700c Road Bike Inner Tube, Presta, 700x18-23c, Durable Butyl Tube, Standard 32mm, Long 48mm, 60mm Presta Valve with Copper Stem for Deep Section Rims, Fits 700x18mm Road Tire, Reliable Inner Tube for Road Cycling, Training and Commuting Durable tube available in long and standard valve stem lengths to suit normal and deep section rims High air pressure retention! Less air loss means having to inflate less Good value Your robust and reliable partner to give a smooth ride and handling Carry me, Let's Cycling