2 x Schwalbe Inner Tubes - 28" x 1.50, 1.75, 2.00, 2.1, 2.25, 2.40, 1 1/2. 29" x 1.75, 2.0, 2.1, 2.25, 2.40 (700 x 38C, 38B) - Presta Valve - PAIR - Valve cap upgrade [No. SV19] 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!