Twin strut set for 30"- 38" (750mm - 950mm) catamaran. Aluminum, CNC cut. NEWLY redesigned to include a thicker adjustment post/bracket. See picture 3. Set of two struts for a twin motor/engine setup. Requires a catamaran with transom overhang. Measure approx. Strut 110mm (4.3") in length. Transom mounting plate 33mm tall x 20mm wide. Transom overhang mounting plate size 20mm by 20mm. Includes:Everything in picture one has a lead teflon bushing for a 3/16" (.187", 4.75mm) propeller shaft.Replacement bushings pn# oc6ltsb 1/4"(6.35mm) to 3/16" (4.76mm)