• Material : zamac• Finish : matte black• Group of finishes : black• Overall height : 28 mm• Overall length : 32 mm• Screw: M4 (included)CLEANING : Rocheleau knobs and pulls must be cleaned with a soft dry cloth free of any imperfections that might damage the product. If needed, the cloth may be slightly dampened with a neutral cleaner. Gently rub the knobs and pulls with the damp cloth.