Package Included: 1 x Heavy Duty Setting Tool 1 xTool box Expansion Screw: 20 x M4*32-6 20 x M4*38-12 12 x M5*52-12 12 x M6*52-12 12 x M6*65-24 Features: Expansion Screw: Retractable tie in any cavity by closing statement to achieve solid anchor effect. Scope: can be used for hollow bricks, plasterboard, fiber cement, wood and other hollow base, suitable for installation lamps, curtain rods, picture frames, cloakroom, power switches, light load objects. Installation effect: swelling in the arm stretched behind hollow substrate, forming a larger contact surface, provide a reliable anchoring effect. Heavy Duty Setting Tool: The setting tool is designed to make easy work of expanding the hollow wall plugs once they are in place Metal with non-slip rubber grips and slip guard For setting cavity wall fixings into hollow stud walls accurately and quickly Place Anchor into pre-drilled hole, attach setting tool and squeeze trigger Finish: Painted Handle Finish: Smooth Size: approx. 16.3cm x 12cm x 2.7cm/ 6.42" x4.7" x 1.06"