Construction:Construction safety products Proplock Adjustable™ The Proplock Adjustable ™ is adjustable to suit most brands of acrow or form work props on the market. Proplock Adjustable ™ Proplock Standard ™ With a unique expansion joint the Proplock Standard ™ is designed to fit the most popular props used in Australia. Proplock Standard ™ Copyright © Macsafe Australia Menu Home Products About Safety Documents Contact