The Mag Master Pro is a magnetic tool holder that will hold a wide variety of tools while also supporting them within weight restriction. There is no other magnet as strong as these on the market. The Pro has a milled aluminium housing and a upgraded belt clip. Features Super strong magnet holds anything magnetic. Clip it where you want it - belt, pockets, or tool pouches. Speed up workflow - never set a tool down or lose track of hardware again. Light and durable milled aluminum back plate. Neodymium N52 magnet in a hard rubber cap. Spring-steel 1.75" (45mm) belt clip. *MagMaster Pro is a strong magnet but it's still a passive retention device. Please use caution when carrying heavy tools and working overhead. Please also be cautious around equipment that is affected by magnets.