Check the listing for details. AME 25 Piece Primo Cribbing Kit - 15254P. Color: secret, Condition: New. Listed at 15675.45 USD. AME International Super Stacker Cribbing Blocks. Certified and tagged cribbing and support solution for the largest jobs. Multiple sizes and kits available to to fit any need across a full spectrum of industries including military, aerospace, aviation, industrial, automotive, construction, agircultural, and mining applications. All blocks interlock with either pyrmaid or lincoln log surface. Each block is shipped with a tag stating the PSI capacity and working load limit. Product Features: 25 Piece Primo Cibbing Kit (24) 15239, (1) 14468 15239 - 6"x7"x24" Primo Cribbing Block 14468 - 24"x24"x2" Non Skid Jack Plate Pyramid and Lincoln Log Surface Certified and Tagged Does Not Absorb Fluids Made In USA 50 Year Warranty See More Details