: The designed to fit all hydrofoil tracks. it can be installed on a of surfaces such as wood, tile, and concrete.Solid and durable: Made of high-quality brass, the o-rings are durable and not easy to break.Unique design: The is a unique design that allows you to mount your hydrofoil tracks .Product name: hydrofoil screwnuts: M6Material: brasscolour: goldPackage Contents:4 x Hydrofoil screwOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-GONGQ trading 3