This is a professional useful DIY clock movement kit, made of plastic materials, durable and safe to use for long time. They have good manufacturing process and practical functions. They are easy to install and use, suitable for helping you with the work of replacing the clock core. Features -Color:Black. -Material:Plastic.. -Size:9.00X5.50X2.00cm/3.54X2.16X0.79inch. -Movement shaft length: 1.2cm/ 0.47inch. -Battery Life: AA/6 months. -Pendulum(Max Length): 200mm. -This professional practical clock movement is suitable for most clocks, no worry about non-compatibility. -The complete clock movement kit is suitable for repairing or making a clock, bring you convenience. -The clock core's unique design and can easily win your love. -Made of plastic materials and exquisite workmanship, excellent and reliable, durable and practical. -This DIY clock movement kit is easy to install, with equipped necessary parts, good performance to serve you well. Package list: 1 x clock movement 1 x plastic washer 1 nut 1 x brass washer 1 x hook(metal)