Quality materials ABS plastic, 1.5 meter steel cable, suitable for wider doors. Anti-oxidation, anti-corrosion, rust-free, stable, wear-resistant, weather-resistant, quiet and safe stop device. Close the door at a constant speedThe new door closer automatic damping buffer door can close the door at a constant speed. Prevent damage to the door and effectively extend the service life of the door. Easy to install Hole-free installation, first wipe the dust in the place where it needs to be pasted and hold - clean and dry. Tear off the adhesive film from the wire winding box and the hook and stick it in the chosen installation position. Then it can be used. Automatically close all doorsSuitable for doors or doors with a slightly stronger closing force. Doors that open left and right, wooden and metal doors, residential and commercial doors, exterior/interior door closers, fire doors. Please Note: Door closers are not suitable for doors with carpet or too much friction. Wide ApplicationMulti-functional automatic door closer without punching, closes all doors automatically. Very suitable for home use, light office, hotel, dorm, classroom, business, shed, ranch, and home office!