12'' x 1.75/1.95 Stroller Replacement Tubes: Fits most kids bikes on the market with 12 tires that are between 1.75 to 1.95 wide, like RoyalBaby, Schwinn Elm/Koen, Dynacraft, JOYSTAR and COEWSKE guaranteed fit! ADDS COMFORT TO YOUR BABYS RIDE: With thick butyl rubber that absorbs shocks, your baby wont feel the bumps and hollows because the stroller will glide along, protecting the loving one from the force. Now thats comfortable. SAFETY FIRST IS OUR MOTTO: We designed this inner tube to be explosion proof. When and if punctured, it immediately creates an airtight seal to prevent damage, destruction and injury to the rider. Safe in any season or weather condition. MADE HEAVY DUTY FROM QUALITY MATERIALS: Our Inner tubes are made from premium, 100% butyl, BPA and odor free rubbers, Its our job to make dependable and durable inner tubes and we do it right! Count on CalPalmy! IMPORTANT NOTE: This replacement kit is an aftermarket product produced by CalPalmy (TM). It meets or exceeds the performance of OEM replacements (based on in-house testing). We do not have any affiliation with or endorsement from any of the manufacturers mentioned.