Super Stacker Cribbing Blocks, FR Industrial Kit

•Certified and Tested •Multiple sizes, shapes fit most applications •Interlocking or aggressive non-slip surface •Non-conducting plastic resists oil and most chemicals •Does not splinter, like wood •Carrying lanyards provided on all 6” x 7” and 4” x 4” crib blocks •Made from 100% recycled plastic •Can be used with Lincoln log mating or pyramid mating •Made in America •The FR industrial Kit is ideal for use up to 85 tons