The over-the-door coat hook is wooden board back and comes with 4 dual head hooks. It measures 17.7 inch wide and 12.6 inch high from top. The wooden board is made of E1 grade Eco-friendly MDF material and coem with white color painting. Hooks are Zinc alloy with nickle plating. The hanging arms are detachable and fit for all doors or semi-partition which are thinner than 2.1 inch. It is nice storage organizers of your office, bedroom, bathroom, wardrobe, fitting room for hanging coats, jacket, towels, scarfs, hats and robes.