1. [Strong Penetrating Power] The concrete nail has strong penetrating power, the concrete nail can pierce 3mm steel plate in in only 0.1 seconds. The nail is suitable for nail length: 25mm nails. Can penetrate: red brick wall, concrete, 3mm steel plate, thick plate. 2. [Strong penetrating power] Concrete nail has strong penetrating power, concrete nail only needs 0.1 seconds to pierce 3mm steel plate in . The nail is suitable for nail length: 25mm nails. Can pierce: red brick wall, concrete, 3mm steel plate, thick plate. 3. [One-handed Operation] Manual steel nail is light weight and small size, weighing 1kg. , old people, children can also easily complete nail work. Easy to operate and carry to scenes. 4. [Wide Application] Suitable for camera installation, electrical box installation, plumbing installation, air-conditioning installation and hanging photo frames, multi-functional shelves, small junction boxes, pipeline installation, tying wires and so on. 5. [ Technology] No residue. Low noise - can be used in inhabited buildings. Low maintenance. No direct impact parts. Narrow profile. Light weight. Colour:As Shown Material:Plastic + Metal Package Contents: 1 * Nail 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.