The B&B Pipe Jacks are the strongest, most durable product on the market with the most available head options than any other manufacturer and at least a 2:1 safety ratio that is third party tested. The B&B Pipe Jacks have increased stability due to the following properties: oversized square tube legs and braces, a 1.5” Acme rod, increased width, and a unique bottom lock T-handle. The B&B pipe jack stand features a safety washer that can be fastened to the base for increased operator safety and an increased dimension tubing throughout. The Roller Head Pipe Jack Stand with Steel Wheels has an adjustment height from 29-50” and a weight capacity of 2000 lbs.