If you are looking for a professional clock mechanism set, then your research is over here. That's because our product can meet your need. Adopted of solid material, practical and durable for long time use, not easy to get deformed and bring you much convenience. Features -Color:Silver-Material:Plastic, iron-Size:4.50X4.50X3.00cm/1.77X1.77X1.18in- Made of plastic and iron materials used for exceptional durability and long-lasting use.- DIY clock-making kit equipped with unique reverse movement clock mechanism.- Provides a fun and creative way to make your own DIY clock.- Reverse movement clock mechanism ensures a unique and eye-catching display.- Provides reliable and consistent performance for a seamless user experience.Packing list: 1 x clock mechanism3 x hands