4 Pack Trailer Jack Block, Camper Blocks RV Stabilizer Stands for Travel Trailers 5th Wheels and Any Tongue Jack, Post, Foot, or Stabilizer, Supports up to 16,000 lbs per Block - Lanfee, Jack Block-004

• [Trailer Jack Block]: Durable jack blocks designed for RVs, trailers, and trucks. Package includes: 4 jack block. [Sturdy, stable and durable]: The RV trailer jack block is made of high-quality hdpe material, non-toxic and tasteless, strong and corrosion-resistant, anti-ultraviolet, recyclable, which can ensure the stability of outdoor environment use.Supports up to 16,000 lbs per Block. [Versatility and multi-compatibility]: Trailer jack blocks can help maintain stability on a variety of environmental surfaces: grass, gravel, dirt, or asphalt. Virtually eliminates all motion and sway in parked RVs and trailers.Supports nearly any scissor jacks, tongue jack, post, foot, or stabilizer. [Upgrade Design]:Compared with other trailer jack blocks, we have upgraded more stable stacking, more convenient side holes and a structure that is not easy to accumulate water, which is more convenient for outdoor use. [Dimensions]: About 3.9 inches high, length: 11.2 inches, width: 8.8 inches, center recessed hole diameter 2.4 inches.Each stack adds 2.1 inches in height, no more than 4 layers are recommended. [After-sales service]:LANFEE has a professional production base for RV accessories, and 100% quality inspection before leaving the factory. If you have any questions, please feel free to contact us.