Fits any Valley Canoe Products oval hatch rim and Necky Kayaks as well as some older Wilderness Systems kayaks Kayaks have outer edge of the product is 18.46" x 11.14" and inner edge measurements of 16.38" x 9.41" We use high quality rubber material, good flexibility, high elasticity, wear resistance and cold resistance, good toughness can better fit the edge of the hatch, increase the tightness of the hatch, prevent excess water from entering your kayak Our products are very waterproof, the hatch can be used as the first choice for extreme explorers, with smooth satin surface, can refract UV rays to reduce damage to the kayak If you are not sure if it is suitable for your model, please email us – our products all have a 30-day refund service Fits any Valley Canoe Products oval hatch rim and Necky Kayaks as well as some older Wilderness Systems kayaks