Features: Crafted with high strength Metal and Plastic materials, lightweight and durable. Designed for cyclists in need of a convenient and secure way to attach their number plates. Perfect for various road cycling scenarios, including competitions, training, and everyday rides. Lightweight and easy to assemble and release. Fit most bike sizes. Riding With the Bike Race Number Plate mounted to your seats give a professional appearance and does not obstruct your riding. Specifications: Material: Metal and Plastic Style: Standard configuration for fitting round tube/Standard configuration for fitting V-tube/Standard configuration for fitting round tube & blank number plates & 2 digital stickers/Standard configuration for fitting V-tube & blank number plates & 2 digital stickers Size: As shown in the picture Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1set Bike Race Number Plate Holder