TACO Marine Backing Plates f/Grand Slam Outriggers - Anodized Aluminum. Designed perfectly to slide over the mount bases of the GS-280 2801 380 and 390 these plates will save your T-top from potential damage caused by outrigger torque when extended. Specifications for TACO Marine Backing Plates f/Grand Slam Outriggers: Manufacturer: TACO Marine Fabric/Material: Aluminum Length: 6 in Size: One Size Color: Silver Features of TACO Marine Backing Plates f/Grand Slam Outriggers Provides strength to base Matches existing base hole pattern No drilling Attractive addition to your T-top Sold in pairs Package Contents: TACO Marine Backing Plates f/Grand Slam Outriggers TACO Marine BP-150BSY-320-1: Backing Plates f/Grand Slam Outriggers - Anodized Aluminum