It is adjustable. Permanent fixed height mount with built-in transom angle and trim adjustment for auxiliary or trolling motor. Same adjustment brackets can be inverted for positive or negative use and adjust to transoms with plus or minus angles from 7-35° in 7° increments. Tough 304 stainless steel brackets. 1-1/2" thick, 8" wide waterproof laminated mounting board with full ply at bolt holes for added strength. For motors up to 15 hp.