[ Material] This automatic door closer is made of premium Zinc Alloy material, which is and not easy to fade. It has fine workmanship and rust-proof. [Adjustable Tension] This product not only adjusts the tension, but also the closing speed, converting a hinged door into a self-closing door. Its direction is not fixed, can be used for both left-handed and right-handed doors. [Easy Installation] This automatic door closer comes with accessories for easy installation. It can be used on doors weighing up to 30 kg and you can adjust the tension. Colour:black Material:Zinc Alloy Package Contents: 1 x Automatic Door Closer Kit 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.