Feature: 【GREAT PERFORMANE】: Can easily paddle with great energy saving, easy transportation and shock resistance, providing you with an excellent surfing experience. 【WELL EQUIPPED】: Has a base for fixing/dividing water plate converter. Meanwhile, the sliding and locking splitter converter is detachable, can be applied to the water separator plate. 【HIGH-GRADE MATERIAL】: Surfing Fin Adapter is made of strong and nylon and plastic materials, which owns high quality. 【EASY TO INSTALL】: Fin Box Adapter is easy for installation, doesn't take a lot of tools and a lot of effort, a nice sea game good accessories, you are worth having one. Specification: Item Type: Fin Box Adapter Material: Nylon + Plastic Color: As Pictures Shown Product Size: Approx. 21x5.2x4.5cm/8.3x2x1.8in (Manual measurement with an allowable error of 1-2 cm) Screw Hole:4mm/0.2in (Manual measurement with an allowable error of 1-2mm) Weight: Approx. 157g/5.5oz Suitable for: Adults Quantity: 1 pc Product Category: Surfboard Accessories Assembly: It Can Be Used on Water Separator Plate. Design: in Practical Use Can Easily Paddle, Very Labor-saving Package List: 1 x Fin Box Adapter 1 x Screw Nut Note: 1. Manual measurement, please allow a little error, thank you! 2. The picture may not reflect the actual color of the project due to the differences between different displays.