Material: ABS construction delivers durable reliability for wheel chocks used with trailers and RVs, helping safeguard your vehicle. Size and compatibility: Suitable for tyres with a diameter of up to 26 inches. Works with motorhomes, trailers and trucks; provides secure and stable grip to prevent damage. Non-slip design: Textured surface increases friction and grip; ensures a secure fit and prevents the tyre from rolling away. Prevent rolling away on inclined or uneven surfaces: With the attached wheel chocks, your motorhome, trailer or other vehicle stays securely in place on slopes or uneven ground. Use scenarios: - Park on a slope at a campsite or driveway; place the chocks to prevent wheel movement when parked and loading or unloading. - Hitch or unhitch a trailer on uneven ground; use the chocks to prevent accidental rollaway during maneuvers. - Stabilize a motorhome or truck during maintenance in a driveway or campsite, ensuring the vehicle remains stationary.