Cycling Sound Absorbing Foam Durable protection and flexible form: Not easy to deform and remains flexible, helping to protect your bike from dirt and scratches, with particular suitability for mountain bikes. Wearresistant material: Made from quality PVC and nitrile rubber, this foam is wearresistant, soft and elastic, making it a reliable choice for your mountain bike shifting cable tube. Noise reduction and compatibility: Reduces noise from the cable tube and the bike frame. It is suitable for use with any cable tube, including shifting cables, brake cables, and oil tubes. Easy installation: Quick to set up and adjust using the provided accessories. Follow the included instructions and you do not need professional tools or expertise to install this product. Use scenarios Mountain bike rides on rough terrain: Install around shifting and brake cable tubes to keep the frame quiet and protected from dirt and impact during rugged offroad riding. General bike maintenance on various bikes: Use on shifting cables, brake cables, or oil tubes to reduce operational noise and provide additional protection on road, mountain, or hybrid bikes. Transport, storage, or routine care: Apply to protect cable tubes and the frame from scratches and dirt during transport or when the bike is stored.