The YakAttack Track Mount Vertical Tie Downs come with a Mighty Bolt base that fits in any YakAttack GearTrac, MightyMount or most other factory installed track systems. Perfect as an anchoring point to secure a cooler or any other accessory to the track. Designed to work with 1'' and 1.5'' flat webbing and can also be used with bungee. Made in the USA from premium materials for a lifetime of use in even the harshest environments. Sold in a two pack.