Hollow wall anchors are made of quality metal materials, have high stability, are , not easy to damage, and can be used for a long time. Dimensions are Screw is 6mm x 25mm, and metal cavity fixing size is Approxi 12mm x 17.5mm, metal wall anchors fit very well shallow hollow panels Simply place the hollow door anchor set nut into the appropriate hole, then over the screw and squeeze to unfold the anchor to secure Contains 12 pieces of expansion screw petal nut, a sufficient quantity to drywall anchor set to meet your daily use and make life more convenient Hollow door anchor set can be used to hang items, curtain rods, lamps, photo frames, and wall cabinets, and is a must-have choice in life. Material: Metal colour: As shown Package Contents: 1set x hollow door anchors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.