Rig Rite Horizontal Transducer Plate Black 3.5in x 12in. Perfect mounting surface for installing removing or adjusting transducers to get the maximum performance from your fish locator. Made from gray Starboard marine grade polymer sheets. Won't warp corrode or be affected by sunlight. Mounts with two screws (provided). Features of Rig Rite Horizontal Transducer Plate - 3.5in x 12in Measures 3.5" x 12" Perfect mounting surface for installing removing or adjusting transducers Made from gray Starboard marine grade polymer sheets. Mounts with two screws (provided) Package Contents: Rig Rite Horizontal Transducer Plate - 3.5in x 12in Rig Rite 925: Horizontal Transducer Plate Black 3.5in x 12in