2PCS/Set Mountain Bike Tire Liner MTB Bicycle Tyre Liner Inner Tube Protection Pad Puncture Proof Belt (700C)Specification:Material: Polyurethane polymer compositesColor: TransparentQuantity: 2 pcsApplicable model:26/27.5/ 29/ 700CTire Liner to protect bicycle tube for Road Bike. Installation:Expand the tire liner around the tire, leave 2 cm spaces..