58mm Twin quick change motor mounts, 8” width.These twin mounts are made for 58mm diameter motors, and feature a top removable clamp to make removing motors easier. The bottom mount stays in the boat, but still allows the motors to be removed for maintenance. Comes with a front and rear clamp mount. Made from 6061 billet aluminum. Made in the USA. 6 32 Stainless hardware included as shown. Rails can be purchased separately.