The sliding door pulley and umbrella parts in this kit are made from plastic and steel materials, offering durability and longevity. These components are compatible with a wide range of outdoor center pole umbrellas, making them a versatile choice for any patio setup. The ease of installation allows users to quickly replace broken parts, extending the life of their umbrellas. Features - Color: Multi - Material: Plastic, Steel - Size: 6.50 x 2.20 x 1.00 cm / 2.55 x 0.86 x 0.39 in - Materials: Crafted from durable materials, these parts are built to last and provide reliable performance in various weather conditions - User-friendly design: The replacement parts are designed for easy installation, allowing users to quickly replace damaged components without professional assistance - Broad compatibility: These parts work with many outdoor center pole umbrellas, making them a practical addition to your patio accessories - Great solution: Replacing individual parts instead of the entire umbrella helps maintain your outdoor setup efficiently - Smooth functionality: The sliding pulley system ensures smooth operation of your umbrella, providing ease of use and convenience Package list: 4 × Patio umbrella pulley