Stop Flats V2 27" 1-1/8"--1-1/4"----700 X 28/35C Red Bicycle Tire Liners PRICE IS FOR 2 TIRE LINERS FOR TIRE SIZES: 27" 1-1/8"--1-1/4"----700 X 28/35C. HARDENED OUTER LAYER HELPS AGAINST:THORNS,GLASS AND OTHER ROAD/TRAIL DEBRIS..