2 x Schwalbe Inner Tubes - 700 x 18-28C (18, 20, 22, 23, 25, 28) / (28" x 3/4", 7/8", 1.00", 1.10") - Presta Valve - PAIR - FREE SHIPPING! FREE VALVE CAP UPGRADE WORTH $4.99! [No. SV15] TWIN PACK - 2 x Premium quality Schwalbe 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!