The Hangman ultimate wire hanger, the Walldog Safety Hanger offers an extruded aluminium lip to prevent picture wire from slipping out of place, and Walldog anchorless fasteners for up to 36kg (80lbs) of hanging strength. The included friction bumpers keep art from shifting and scuffing. The broad base allows pictures to hang level without shifting. Walldog screws install quickly and easily with a Phillips screwdriver in wallboard, plywood, concrete, hollow or grout filled block, brick and plaster.