Double-Wheel Plastic Curtain Track Pulleys with Metal Hook, 10PCS Set for Smooth Sliding Window Blinds Accessories. Smooth Sliding Design: Double-wheel pulleys with metal hooks ensure smooth sliding for window blinds. Durable Plastic Material: Constructed from high-quality plastic for long-lasting performance. Complete 10PCS Set: Includes 10 pieces of curtain track pulleys for immediate installation. 180 Days Warranty: Covers mechanical defects with a 180-day warranty period. OEM and ODM Support: Accepts custom orders based on customer designs and samples. ISO 9001 Certified: Manufactured under strict quality control according to ISO 9001 standards. Global Market Reach: Products exported to USA, Europe, South America, South Asia, and worldwide. Free Sample Availability: Free samples provided, with customer covering freight costs.