2 Ton Capacity Cross Beam Adapter fits Floor Jack 4000 lb Extends 28" to 40"
2 Ton (4000 LB) Maximum CapacityExtends from 28" Minimum to 40" Maximum4-3/4" Adjustable (up and down) Rubber Pad Mounts(2) 11" Safety ChainsCenter Shaft measures 1-1/8" x 3/4" with a bolt washer mountFrame made of 1/8" Steel (.125")