Features: Reliable Performance for Everyday Use Trust in the dependable craftsmanship of this garage door Extension hardware kit, which seamlessly integrates with your existing setup. Offering the essential garage door parts needed for consistent function, this set elevates your garage's operational standards. Specifications: Material: high-quality materials Color: black Size: Springs: 110 lb, 3.8mm Pulleys: 3 inch Package includes: 1 Pcs Extension Springs 4 Pcs Pulleys 2 Pcs Extension Cables Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays