Features:- Engineered for heavy-duty performance, these extra-large PU wheel chocks can support up to 66,000 lbs. Whether you are securing a full-size pickup, a massive horse trailer, or construction equipment, these chocks provide the uncompromising stability required for professional and industrial use.- Measuring 7 7/8" H x 11" L x 7 7/8" W, these chocks are specifically designed for larger wheel diameters. They offer a deeper, more secure grip for heavy-duty trucks, large campers, and agricultural machinery that standard small chocks simply can't handle.- Made from premium high-density Polyurethane (PU), these chocks offer 3-5 times the service life of traditional rubber. They are exceptionally lightweight for their size, yet won't crack, crumble, or emit the toxic, pungent odor common in recycled rubber products.- The Diamond-Tread surface ensures a relentless grip on gravel, mud, asphalt, or concrete. Paired with a 5ft (150cm) high-strength rope, these chocks can be easily deployed and retrieved in pairs, keeping your hands away from the "danger zone" under heavy loa.- With an extreme operating range of -20°C to 100°C, these chocks perform flawlessly in sun or snow. The non-marking PU material ensures that even under massive pressure, they won't leave black streaks on your workshop floor or stained driveway, unlike traditional rubber ramps.Specifications:- Suitable Tire Diameter: approximately 35"- Dimensions: 11" x 7 7/8" x 7 7/8"- Load Bearing Capacity: 30 Ton- Suitable Vehicles: full-size pickup, heavy-duty trucks, Off-road Car- Temperature Range -20 ℃ -100 ℃Package Contents:- 2x Wheel Chock ( 1 Pair)- 1x Connect Rope- 1x Manual