The lot of 50 desk edge permanent mount brackets allow you to improve social distancing between desks and at points of contact with customers or clients through-out your workplace. This is a permanent mount that screws into the underside of a desk or tabletop with mounting screws. Brackets can be used in multiples and can accommodate panels of any length, recommended up to 36 inches high. They're made from a durable, aluminum alloy and are backed by a 5-year manufacturer's warranty.