🚴♂️ Elevate Your Ride with Bell's Best! Mold cured rubber ensures consistent sidewall strength. Compatible with a wide range of bike sizes (16" x 1.75-2.25"). Perfect for baby-girls' bikes, ensuring safe rides. Weighs only 0.3 lbs for easy handling. High-quality inner tubes designed to prevent blowouts. Mold cured rubber 35mm Schrader valve 16" wheel size The Bell Standard and Self Sealing Bike Tubes are crafted from high-quality butyl rubber, featuring a 35mm Schrader valve and designed for 16-inch wheels. With a width fit range of 1.75 to 2.25 inches, these tubes are perfect for multi-use bikes, ensuring safety and reliability for all riders.