Heavy duty blocks are safe and easy to use. They offer many options for leveling single wheels, dual wheels, hydraulic jacks, tongue jacks, stabilizer jacks, 5th wheel jacks and tandem axles. Customize your levels: Stack interlocking blocks to desired height. Strong and durable blocks are available in a ten-block set and a four-block build-up set. Patented. Each set comes in a convenient storage bag.

Highlights:
Heavy duty blocks
Safe and easy to use
For leveling single and dual wheels, hydraulic jacks and tandem axles
Customize by stacking interlocking blocks to desired height 10 per pack