Features: High Torque Clock Movement ensures precise timekeeping with quiet operating, ideal for noise sensitive space like bedrooms and study room. Features a durable 31mm/28mm long shaft, and plastic casing, compatibles 19 -21mm/ 14-16MM thick panel for seamlessly DIY installation. Perfect for DIY enthusiasts, home decorators for customizable clock repair parts or creative clock projects. Enhances living room, offices, or kitchens with elegant functionality, blending timelessly with quiet, reliabled performances. This set is good size replacement both in terms of the shaft and the size of the hands.As a replacement for your broken clock.. Specifications: Housing: Plastic Shaft length: 31MM/1.22in ； 28MM/11in Optional Coppered Head size about 24MM/0.94in suitable for clock thickness 19-21MM/0.75-0.83in Coppered Head size about 19MM/0.75in suitable for clock thickness 14-16MM/0.55-0.63in Type：HRJS01+A109/ HRJS02+A109/ HRJS03+A109 / HRJS04+A109 Optional Battery: Not included Package Includes: 1Set Clock Movement note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to the different between different monitors, the picture may not reflect the actual color the item.