Fangrui Product Details Two-clock Mechanisms Size: Short Total Shaft Length 16 Mm (0.63 In), Thread Length 8mm (0.315 In), Suit For 3 - 6 Mm Thickness Clock Panel. Long Total Sharft Length 23 Mm (0.9 In),thread Length 15.4 Mm (0.6 In),suitable For 9 - 13 Mm Thickness Clock Panel, These Two Clock Movements Can Be Used For Almost Any Home Wall Clock. Silent Clock Mechanism: Clock Movement Use Ultra-silent Scanning Design, Sweep Clock Movement Without Any Noise Which Can Offer Your Sleep A Silent Environment. All Of Your Requirements Are Met By A Simple And Elegant Design. Material: The Clock Hands Are Made Of High-quality Plastic, Which Is Lightweight And Resistant To Corrosion. Includes 2 Clock Movements In Different Sizes, 5 Pairs Of Hours And Minutes Hands, 5 Seconds Hands And Second Cap, Easy To Install, And Many Options In One Set. Wide Application: Diy Quartz Wall Clock Movement Parts, Suitable For Cross-stitch, Three-dimensional Embroidery, Craft Clock, Frameless Draw Clock, Suitable For Repairing, Replacing, O