Turtle Plastics Dura Cribbing is available in numerous shapes and sizes; including Wedges, Blocks, and Step Chocks.  Unlike traditional wood cribbing, which can split, rot, or splinter under heavy loads, Turtle Plastics Dura Cribbing is made from 100% recycled high-density polyethylene (HDPE) making it extremely strong and stable.  Dura Cribbing is non-absorbent, so it will not absorb hazardous fluids like oil, gas, or blood, making it easier to decontaminate and significantly increasing its useful life span.