Product Description: Taco Metals GS-280 Grand Slam 280 Outrigger Top Mount - 1 Pair Top mounts can be installed on a plate on the T-Top, hardtop or arch and can operate from underneath. The enhanced, ergonomic rotator handle adjusts to your desired position to avoid obstruction during operation and features a secure, heavy-duty grip for sure handling in rough seas. With 12 positive locking positions the multi-angular arm features strong stainless steel construction with optimum positions for fishing, lay down for bridges, storage, and trailering. Manufactured with durable anodized aluminum & stainless steel components and Delrin™ bushings, they are sealed to prevent water leaks. 1-1/2" ID base fits most 15' and 18' outriggers. Installation is easy with a bolt down application. Fits TACO outrigger-ready pre-drilled plates.