Pendulum Bobs - various types. 25mmD brass, 20mmD brass, 20mmD steel, 20mmD plastic. 12mmD brass. Each bob has a small hold drilled through and a larger hole counterbored on one side so a knot can be made in a string and the knot pulled up into the larger hole to be hidden and to be tamper-proof.
Product Information
Brand : IEC
