Your trailer’s best friend. Use this new low-cost solution to keep your trailer safe and secure on all surfaces; mud, sand, gravel, dirt, asphalt, or concrete. The Hand-E-Blok has been designed to handle loads up to 15,000 pounds. Because it is made of 100% recycled plastic, it helps reduce corrosion on your jack, at the same time protecting the environment. With its unique, versatile design, the Hand-E-Blok can be used with post, wheel, and plate tongue jacks, eliminating 6″ of jack travel and meeting all of your trailer needs.