8-PC SUPER STACKER CRIBBING KIT by G2S

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 6in x 7in and on yellow 4in x 4in crib blocks; Made from 100% recycled plastic; Rated up to 298,000 lbs (135,000 kg), depending on configuration; Can be used with Lincoln log mating or pyramid mating; AME-15273: 8pc - 6 x 15239, 1 x 14465, 1 x 14466