Product Overview: 2 Pcs P/N 12181 Standard Directional Skeg Fin Rudder, Replacement Fin for Intex Inflatable Kayak Boats Compatible Model: The fin fits perfectly the receiving slot of Intex-Challenger K1 Kayak (68305EP), Challenger K2 Kayak (68306EP), Explorer K2 Kayak (68307EP), Excursion Pro Kayak (68309EP) Improved Design: Hole added to skeg fin to allow for tether point to kayak Product Function: Upgrade to our New Skeg for even greater hold and drive, it is helpful to improve the performance and stability of kayak Easy to Install: It is very easy to install. It can be slid in and easily fixed within a few seconds. No screws or any tools are required. Easy to carry 2 Pcs 12181 Skeg Fin Rudder, Standard Directional Fin, for Intex Inflatable Kayak Boats, Fits Intex Kayak-Challenger K1(68305EP),Challenger K2 (68306EP),Explorer K2 (68307EP),Excursion Pro (68309EP)