Pocket-sized square block. Magnetises most screwdrivers, tweezers and other small ferrous tools. Demagnetises screwdriver tips prior to working on sensitive components. Corrosion-resistant with protective polymer shell. Length 50mm x height 50mm x width 30mm. Weight 68g. Pocket-sized square block. Magnetises most screwdrivers, tweezers and other small ferrous tools. Demagnetises screwdriver tips prior to working on sensitive components. Corrosion-resistant with protective polymer shell. Length 50mm x height 50mm x width 30mm. Weight 68g.