Features: Six metals :- Aluminium, Brass, Copper, Iron, Lead & Zinc Size :- 25mm Best price, fast delivery, best quality. Part Number: KT74Details: Best quality, well finished and fast delivery, Pendulum bob Set of 6. Dia : 25mm. material: aluminum, brass, copper, iron, lead & zinc.Package Dimensions: 3.9 x 2.0 x 1.2 inches