thorn buster, inner tube protecting, bicycle tire liner - stop flats for mountain bikes using brown 26 x 2.0-2.125” bike tires and tubes with hard durometer center strip. (1 liner) thorn buster why are you still putting up with puncture flats. there are at least a dozen solutions to puncture flats that offer various amounts of protection along with advantages and disadvantages. but for over 30 years the clear choice for providing maximum prevention of puncture flats caused by thorns, glass, and other road debris, while adding minimal weight and doing all this at a low cost, has been bicycle tire liners. thorn buster tire liners are only available on amazon and are designed specifically for the amazon customer. you will note that the other tire liners are sold in packaging designed for retail stores. there is no need to waste the plastic, fill the landfills are add to your cost by putting these liners in retail packaging. the other products are generally sold in pairs. you may only want to buy one. so thorn busters are sold one at a time. buy the amount you need. now you can stop having flats at a super low cost.