Item Type: Hydrofoil Mount Track Box Base Material: PVC Package List 1 x Hydrofoil Mount Track Box Base 1Surf Foil Accessory: The hydrofoil mount track box base is an accessory for fixing the rudder of a hydrofoil board, suitable for surfers. 2PVC Material: The hydrofoil mount track box base is made of PVC, which is strong, wear resistant and lightweight, and does not add too much weight to the hydrofoil. 3Durable: The hydrofoil mount track box base can withstand water pressure and resist UV damage for long lasting durability. 4Exquisite Workmanship: The hydrofoil mount track box base is exquisitely made, and the slotted position and size are very accurate, making it easy to install and use. 5Wide Application: This hydrofoil mount track box base is suitable for most surf foils and windsurfing hydrofoils and is a very practical accessory.