Vivere's plate hooks are designed to conveniently install on a ceiling, veranda, gazebo, or in your home. By using the eight screws, with or without the wall anchors, securely fasten the hooks into a support beam or post that can bear at least 205 kg. Please consult an engineer if you are unclear about the load bearing potential of a given post or beam to be used. Included in the box: 18 piece hook set Capacity: 204 kg/450 lb