1. Guanshang1 Wide Application This wall nail fastening tool is suitable for water and electricity installation, wire box installation, wire trough and wire pipe fixing, door and window fixing, water elevator installation, solar lights, etc. It is also suitable for various soft and hard substrates, thin and thick steel plates. 2. Guanshang1 Note The product has powerful functions. Do not point the product at people. Take good protection when using it. Put it in a place where children can't touch it to avoid accidental injury. 3. Guanshang1 Afters If you have any questions, we will provide professional and satisfactory . 4. Guanshang1 and Mini Size This mini nailer tool is only 30cm in length, caliber 7.3mm and lightweight, which can be used with one hand. It can adjust power and is suitable for mini onepiece nails.