This is a perfect fit for someone looking to bow mount a fish finder graph. This mount has 40 degrees of adjustment, so you are guaranteed to find the perfect position for your comfort. Universal bolt pattern on top plate fits all major brands. Easy to drill top plate if you need more mounting holes Top plate is 12.75” x 3.25” Center hole is 1.3”. Sold in two sizes 5.25” or 8.25" tall at its tallest position. Package Includes: Top, Left, and Right Mount Brackets 4x 1/4x1” Bolts, Washers, Nuts (Used to assembly Graph Mount)