Punch Free Automatic Sensor Door Closer 0.05X47.2" Cable Lock 600G 4Set Black

What is this?Multifunctional automatic door closer, which can keep the residential door, interior door, and commercial door automatically closed. Suitable for home use, small office, and home office.What will I get?Size: 70 x 45 x 24 mm/2.76 x 1.77 x 0.94 inch(L*W*H)Tensile strength: 600 GPull rope diameter: 1.2 mm/0.05 inchPull rope length: 1.2 m/47.2 inchMaterial: ABS, Steel WireColor: BlackIn the package of: 4 Set x Door Closer (Each set contains with 1pcs Adhesive Sticker, 1pcs Hook, 4 pcs Screw, 4 pcs Expansion Nail Sleeve)Is there any advantages of the product?Self-adhesiveness, no need to perforate installation, high temperature and aging resistance, firmness, no damage to the wall, and easy installation.How to use it?1. Clean the location where it needs to be attached in advance. 2. Paste the door closer and hook respectively. 3. Hang the steel wire on the hook.What should I notice?Tips: To install the door closer, the tape's viscosity is strongest after 24 hours.