Features: Experience uninterrupted quiet with our quiet move clock movement, features noiseless operating and precise timekeeping accuracy for reliable daily use. With durability plastic housing, this universal clock mechanism seamlessly integrates into most wall clocks and table clocks for effortlessly DIY upgrades. Ideal for home DIY enthusiasts for quiet, high performances clock parts to refurbish or customizing clocks part. Perfect for noise sensitive environment like bedrooms, offices, and study area where quiet operating enhances focusing and relaxation. The easy installation design ensures quick compatibilities checks, for clock accessories for easy maintenances. Specifications: Shell Component: Plastic Size of movement box: about 56x56x16mm/2.2x2.2x0.63in without hanging Color Type: Optional Battery: Without Battery Quantity: 4Set （4pcs/1Set） Package Includes: 4Sets of watch movement note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution