Features: High torques clock movements kits effortlessly drive long 385mm metal hands, solvings traditional motor limitations for large scale wall clocks. precisions engineered quartzs mechanism ensures monthly accuracy within ±30seconds, for space demanding timekeeping like office and lab. for clock enthusiasts, hobbyists, and DIYers creating statement or repairing clocks with its 20mm panel compatibilitys. Transform room, workshops, or commercial space with aluminum alloy hands that resist warping and fading for years. Not tool assembly in 60seconds simplifies installation for skill level, backeds by industrial strengthes for operations. Specifications: Materials: Metal Size: as picture show Color: Black, Gold, Silver(optional) Package Includes: 1set Clock movements note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.