Add a whimsical touch to your dresser or cabinet with our brass knobs collection. – Bolt part is made of brass too, which means it is more delicate than iron. Please tighten with care at any time. – Length of bolt is 3-5 centimeters; bolt can be trimmed to size. – Our knobs can also be used on walls and serve as a jewelry hanger, please make the hole first and tighten with care.