IKEA BJARNUM Folding hook, aluminum 6-pack Simple to fold up when not in use. Different wall materials require different types of fasteners. Use fasteners suitable for the walls in your home. Wipe clean with a damp cloth. Wipe dry with a clean cloth. Aluminum, Nickel plated, Acrylic coating Width: 1  "(3cm) / Depth: 3  "(8cm) / Height: 3  "(8cm)