Enhance your biking experience with these tire liners that guarantee puncture resistance. The liners come in a pack of two and are compatible with both 26x4 and 20x4 fat tire bikes. The polar bear brand ensures high quality and durability, while the material used is rubber. The color of the liners is green, and they are tubular in shape. The tire liners are made in China, and they weigh only 0.13oz each. These liners are a part type of the tire and have a width of 4 inches. The set includes the tire liners that are designed to protect the inner tubes against punctures. The liners are suitable for universal bike types, and their puncture-resistant feature makes them ideal for off-road biking. The product is an excellent addition to your biking accessories and a must-have for a hassle-free biking experience.