1. [Strong penetration] The concrete nail has a strong penetration force, and the concrete nail can Pierce 3 mm steel plate in a step in just 0.1 seconds. The nail is suitable for nails with nail length: 25mm. Can punch through: red brick wall, concrete, 3 mm steel plate, thick plate. 2. [Strong penetration] The concrete nail has a strong penetration force, and the concrete nail can Pierce 3 mm steel plate in a step only 0.1 seconds. The nail is suitable for nails with nail length: 25mm. Can punch through: red brick wall, concrete, 3 mm steel plate, thick plate. 3. [One-hand operation] The manual steel nail is light in weight and small in size, weighing 1 kg. Girls, the elderly, and children can also easily complete the manicure. Easy to operate and carry to scenarios. 4. [Widely used] Suitable for camera installation, electric box installation, water and electricity installation, air conditioning installation and hanging picture frame, multi-functional shelf, small junction box, pipeline installation, tying and so on. 5. [New technology] No residue. Low noise - can be used in occupied buildings. Low maintenance. No components are directly affected. A narrow outline. Light weight. Product weight: 573g (without packaging) Product volume: 33x7x3 (cm) Colour:green Material:plastic+metal Package Contents: 1 x 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.