Heavy-Duty Construction: This 2-pack of parking stoppers measures 21.7” L x 5.9” W x 3.5” H and is made from high-density rubber for enhanced durability. Ideal for cars, trucks, trailers, and RVs, ensuring long-lasting reliability. Maximum Load Capacity: Each stopper supports up to 33,000 lbs, ensuring secure parking for heavy-duty vehicles like buses, forklifts, and commercial trucks. Provides reliable performance for vehicles of various sizes and weights. Improved Parking Safety: Featuring a bright yellow reflective safety strip for high visibility, these tire stops enhance safety and help drivers park with precision, reducing the risk of accidents in day or night conditions. All-Weather Performance: Made from marine-grade waterproof and weather-resistant materials, these parking curbs withstand extreme heat, rain, and snow, ensuring reliable use in all weather conditions. Universal Terrain Compatibility: Designed for asphalt, gravel, and uneven surfaces, these tire stops work for both front and rear tire applications, offering a versatile solution for diverse parking environments.