High-Quality Material: High-strength plastic expansion tube, wear-resistant and resistant to aging. Zinc-plated self-tapping screws with galvanized surface to prevent rust and corrosion. Butterfly Wall Plugs Design: Butterfly plasterboard fixings feature a unique design. When installed in hollow walls, they form a triangular anchor at the back with an anti-rotation feature for secure and reliable holding. Stable Performance: Plasterboard wall plugs offer excellent insulation, resist aging, and are less likely to loosen. Each plug supports up to 8 kg, providing strong and durable support for door and window frames. Easy to Install: Drill an 8mm9mm hole in the hollow wall, insert the plastic expansion tube, then tighten with a screw. Simple installation, removal, and reuse with standard drilling tools. Wide Application: Suitable for installing curtain rods, light fixtures, and other fixtures on plasterboard, particleboard, and hollow walls. Ideal for mounting photos, posters, and artwork. Material: Plastic, Galvanized Metal Color: Grey Quantity: 50 Sets Type: Butterfly Wall Plugs