1. Double Silencer and durable build: This strong power portable hand power nail gun is made of solid metal, with a non-slip rubber handle and non-slip hood. It has low noise and is undestroyable. The thickened steel dispeller will reduce noise, creating more comfortable building environments without disturbing family or neighbors. 2. Widely Applications: This woodworking and decoration integrated nail shooter, hand power portable nail gun, is suitable for concrete walls, camera installation, electric box installation, water and power installation, air conditioning installation and hanging picture frames, pipeline installation, wire binding, and more. 3. Strong Penetration: The woodworking and decoration integrated air nailer delivers strong penetration. The concrete nailer can pierce a 3mm steel plate in about 0.1 seconds in one step. It has 5 gears of adjustable power; different gears produce clearly different power effects and can be adjusted to meet different construction intensity requirements. 4. Easy Operation: This lightweight concrete nail gun is powered by hand. Five simple steps: 1) Wear protective glasses, gloves, and ear protection; 2) Choose the nail; 3) Position the nail gun vertically at the work area ready to shoot; 4) Apply vertical force into the wall; 5) Hold the muffler cover and compress it several times. If it stops working, clear any residue and try a few more nails.