1、Constructed by high quality PVC material which is durable and solid to use 2、Fin has a clip for attaching/detaching to the fin dock 3、Slide and lock fin box system, ​removable center fin for inflatable paddle boards 4、Great for easy storage and transportation 5、Suitable for longboard / surfboard / stand up paddle board Description: This center fin is designed to protect board from impact when encountering reef. It is characterized by detachable design for convenient transport, impact resistance offering you a great and excellent surfing experience, you will not regret it! Features: Constructed by high quality PVC material which is durable and solid to use. Fin has a clip for attaching/detaching to the fin dock. Slide and lock fin box system, removable center fin for inflatable paddle boards. Great for easy storage and transportation. Suitable for longboard / surfboard / stand up paddle board. Specification: Material: PVC Color: Black Fin Dock Length: approx. 24.5cm / 9.65" Width: approx. 11.5cm / 4.53" Fin Length: approx. 21.7cm / 8.54" Width: approx. 18.2cm / 7.17" Package Weight: approx. 347g Package Includes: 1 x Fin 1 x Fin Dock Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.