Sick of flat tires ruining your ride? Slip these tire liners between your inner tube and tire, and say goodbye to thorns, glass, and nails. This pack includes two liners made from tough, flexible PVC that's lightweight but seriously protective. They're designed for 24-inch mountain bike tires (also available in 20, 26, 29 inches), and they install in minutes – just stretch them over your rim before putting the tube and tire back on. They add an extra layer that stops sharp objects from reaching the tube, so you can ride on rough trails with way more confidence. Each liner is about 67.5 cm long and 16-18 mm wide, fitting rims under 23 mm width. They won't affect your bike's performance, and they're barely noticeable once installed. Perfect for commuters, trail riders, or anyone who hates fixing flats. Keep these in your toolkit, and you'll spend more time riding and less time patching. For the price, they're a no-brainer for extra peace of mind on every adventure.