Stop Flats V2 27" X 1-3/8" 700 X 38/40C Blue Bicycle Tire Liners PRICE IS FOR 2 TIRE LINERS FOR TIRE SIZES: 27" X 1-3/8" 700 X 38/40C HARDENED OUTER LAYER HELPS AGAINST:THORNS,GLASS AND OTHER ROAD/TRAIL DEBRIS..