This adapter creates compatibility between accessories utilizing the original YakAttack MightyBolt as well as other 1/2" wide head t-bolts with the FeelFree Uni-Track and Uni-Bar. Made from anodized aluminum, this adapter is suitable for harsh marine environments, and form fits to create a secure and snug connection between accessories and the FeelFree Uni-Track. The Mighty Bolt, t-bolt, is not included.