• Plastic
• Paddle board fin:made of plastic material, tough, wear-resistant, durable, suitable for various kinds of inflatable surfboard,surfboard replacement
• Fin:this surfboard fin features a practical, users friendly design, with a detachable system which slides in and secures easily,paddle water divider
• Surfboard paddleboard: for adventurous seeking optimal stability and control on the water,detachable paddle fin
• Paddle water stabilizer:with the detachable design, easy to install and use, can meet your various needs,water stabilizer
• Fin for sup:the surfboard fin is suitable for various kinds of inflatable surfboard, surfboard, stand up paddle board,surfboard balance fin