Interlocking, stackable leveling blocks - 10 pk, comes with storage bag. Lightweight, heavy-duty and durable polypropylene.
Easy and safe to use
Maximum weight rating - 12,000lbs / 5,443 kg on a smooth surface
Each layer provides 1" of lift
Maximum stacking height not to exceed 5"
Suitable for single, tandem and triple axles
Versatile and multi-use - works under wheels, leveling jacks, tongue jacks, 5th wheel jacks and more