Hutchinson Protect'Air Puncture Resistant MTB Tube 26x2.3-2.85 Schrader 35mmHutchinson's Protect'air Schrader MTB Tube is a high performance, highly durable, puncture resistant inner tube for mountain bikes. Auto-repairing tube: small punctures automatically seal up to keep you riding smoothly. Weighs 265g, comes with green valve cover.3248382027940