Feature:1. High Compatibility: Suitable for FeelFree kayaks, for Johnny Boats, and for 3 Waters Kayaks, making the adapter a versatile choice for kayakers with different kayaks and kayakers.2. Durable Construction: This adapter is made of anodized aluminum to withstand the harsh marine environment. , and will not be affected by salt water, UV rays, etc.3. Reliable Connection: The plates creates a secure, tight connection between the accessory and the kayak, which ensures that your accessory stays securely in place and won't wobble.4. Easy to Use: With the adapter plates, you can easily customize your kayak setup by easily attaching or detaching the accessory to or from your kayak's rail system.5. Practical Parts: Equipped with O rings, these plates give you a practical experience whether you need to attach a fishing rod stand, camera stand or any other accessory.Specification:Item Type: Kayak Track Adapter PlateMaterial: Aluminum.Process: AnodizingApplication:Military grade, gard anodized aluminum suitable for harsh marine environments.For FeelFree kayaks, for Johnny Boats, for 3 Waters Kayaks,Package List:6 xKayak Adapter Plates6 x O Ring