2 x Kenda Inner Tubes - 16" x 1.75 - 2.125 (Including all width sizes 1.90 1.95 2.0 2.1) - Schrader / Auto Valve - PAIR! FREE VALVE CAP UPGRADE WORTH $4.99! TWIN PACK - 2 x Premium quality Kenda inner tubes direct PUNCTURE RESISTANCE - Higher quality butyl rubber gives better protection SUPER AIR TIGHT - Less requirement to re-inflate unlike other tubes SKYSCAPE METAL VALVE CAPS - 3x Higher air retention over plastic caps - Worth $4.99 IN STOCK + FREE P&P - Ready to ship now!