ZTTO Rim Liner Bicycle Tire MTB Road Bike 700c/20/24/26/27.5/29Inch PVC Tape Pad
Specifications: 700C 16 20 20 24 20 26 20 27.5 20 29 20. Material: PVC, Rubber. The steel ring and the inner tube to prevent puncture the inner tube. Could increase the tire pressure.