Reduces the impact of drastic temperature changes on the internal air pressure of the spare tyre, helping prevent air loss during longterm storage. Prevents small stones, branches and other debris from getting into the tyre tread, reducing the risk of damage to the rubber. For an external spare wheel, reduces direct contact and friction between the tyre and the ground when the vehicle is parked. Provides cushioning for the spare tyre in the event of a minor vehicle collision, reducing damage to the spare tyre. Key use scenarios Longterm storage or seasonal storage of a vehicle: helps maintain spare tyre air pressure despite temperature swings. Parking outdoors or on uneven ground: shields the spare tyre from debris and reduces wear on contact surfaces. Vehicles with external spare wheels: minimizes friction and direct ground contact when parked, and offers cushion against minor bumps. Key attributes Function: Protects spare tyre air pressure, shields from debris, reduces ground contact, and cushions against minor impacts. Compatibility: Designed for external spare wheels and common spare tyre configurations. Performance: Maintains air pressure stability, lowers risk of rubber damage from debris, reduces wear from ground contact, and provides light cushioning during minor collisions. Notes Size and material specifications are not provided by the manufacturer.