These are the standard!
12″ x 48″ x 20′ Digger Mats have 4 rods 1-1/4″ diameter and 2 cables 3/4″ diameter. The thimbles on the cables surround the rod. The cables are used to drag the mats into position. Protect your ground, don’t get your machine stuck in axle busting loon sh*t. Use Digger Mats from Industrial Timber Products!