The YakAttack Track Mount Vertical Tie Downs come with a Mighty Bolt base. Compatible with YakAttack MightyMounts, GearTrac, and most other kayak track systems from Scotty Fishing Products, RAM Mounts, and YakGear. For FeelFree Kayaks, 3 Water Kayaks, and Jonny Boats you will need an adapter to be compatible. Perfect as an anchoring point to secure a cooler or any other accessory to the track. Designed to work with 1 In. and 1.5 In. flat webbing and can also be used with bungee. Made from premium materials for a lifetime of use in even the harshest environments.