• Provides a protective layer between road and trail hazards and inner tube
• Improved advanced polyurethane micro-shell technology features a hardened protective outer layer and an ultra-soft inner layer to cushion the tube
• Weighs less than liquid sealants or thorn-resistant tube
• Contributes to a smooth, stable ride
• Easy to install - no gooey mess
• Reusable (just remember to remove them when you get new tires)