Keep your trailer or RV in place on your Stackers leveling blocks with this wheel chock. Chock measures 6" long x 7-1/2" wide x 5" tall. Handle on chock interlocks with blocks. Tread grips your tires for stability.

Improve stability and protect your plastic leveling blocks while adding 1/2" of height. Compatible with most 8-1/2" x 8-1/2" plastic leveling blocks. Protects your levelers from wear and tear and prevents slippage.