
K55 43mm Rotatable Clutch 1: 1.5. High-Quality Materials: Constructed with PA66+GF, POM, PC engineering plastics and metal core technology. Customized Design: Fully customizable open type and usage scenarios for various rooms. High Load Capacity: Supports a maximum load of 6kg with a reduction ratio of 1:1.5. Light-Proof Design: Features a specialized light-proof design for effective shading. Durable Spring System: Equipped with high-quality piano wire springs and three-level spring back idler. Low No-Load Tension: Ensures smooth operation with no-load tension less than 0.3kg. Chain Installation Ready: Clutch reserved chain installation holes for easy customization. Multi-Function Protection: Provides insect resistance, dustproofing, anti-theft, and invisibility.