Good clock replacement: good quartz movement will work well Simple design, easy to use Energy efficient Accurate timing Great for repairing, replacing or making a clock Wide application: You are enable to use it to repair, replace or make a home clock; Applicable to cross-stitch, three-dimensional embroidery, craft home clock, frame-less draw clock, clockwork, etc Perfect DIY clock kit, , and specially suitable for DIY quartz wall clock replacement movement parts, etc Type: Clock MovementsSize: the total shaft length is approx 20 mm/ 0 8 inches, and the thread length is approx 14 6 mm/ 0 57 inches; Jump second movement is suitable for 9 - 13 mm/ 0 35 - 0 51 inches thickness of clock panelRated voltage: 1 5VBattery life (specification): Approx 12 Months (UM-3)Use Battery: One 1 5V AA Carbon battery (not included)Instruction:1 Attach the clockwork to the product to be installed 2, is installed in accordance with the standard 12 points,when you install it, please keep the hour hand and minute hand parallel3 Pull out the positioning pin from behind the clockwork and insert the battery (Do not insert the battery and then pull out the locking pin )Material:Plastic + Aluminumcolour:Black + GoldenPackage contents:2 x Quartz clock movements14 x clock hands2 set x AccessoriesOnly the above package content, other products are not included Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is +/- 1-3cm