For use on sport fishing boats up to 40 feet Accepts all Tigress XD 1-1/8" butt diameter outriggers.19 upper-arm angle/locking (@10 deg.) using Tigress XD 316L Stainless Steel tooth locking design with horizontal stops for Trailering and bridges.Large 3-lobe UV ergonomic knob for changing and locking the outriggers' elevation24 adjustable/locking system positions (15 degree increments) featuring Tigress XD 316L stainless steel locking design with HD spring return.User friendly side operating lever.Large XD aluminum 14.5mm thick baseplate with four corner mounting.5/16" through x 3.000" x 5.000" 4-bolt patternFits Tigress and other industry standard 4" x 6" mounting plates (four 5/16" diameter fasteners)Extreme-duty 316L stainless steel and anodized aluminum and fully sealed construction with UV protectionAmbidextrous mounting option to accommodate the side that the tri-lobe knob is positioned on.3-Year limited warranty