• Plastic, sponge
• Balance tool:the fin box will be a replacement for the fin box, can keep its function
• Suitable for most kinds of fin, suitable for plate sup enhances stability and control on the water
• Made of plastic and sponge material, tough, wear-resistant, durable suitable for various kinds of fin
• Designed to ensure optimal compatibility with surf kayaks, being for sup
• A strong fin box the repairing tool is balanced to surfing lovers