Heavy duty materials: This patio umbrella accessory is made of heavy steel, providing strong and durable performance. The surface features a black paint treatment for rust resistance, ensuring long-lasting use. Easy to install: The umbrella accessory can be quickly and securely installed, making setup simple and convenient. Space saving: Designed to mount on balcony railings, this accessory helps save space while maintaining functionality and accessibility. Wide application: These umbrella replacement parts are practical and compatible with most standard umbrellas, offering enhanced flexibility for outdoor areas. Size details: - Lifting fixed handle: 50mm diameter - Bend head: 43mm diameter - Steering bracket: 50mm diameter - Crank handle: 43mm diameter - Fixed sleeve: 32mm diameter Package includes: 1 x Patio Umbrella Accessory Note: Slight measurement variations may occur due to manual measurement and display differences.