OSE 3/16" Adjustable Stinger Strut. This works with the ProBoat Sonic Wake using the included Mad Lizard Mounting plate (See picture 2).The adjustable Strut makes fine-tuning the performance of any mono a snap. Its quickly adjusted from positive to negative thrust angles. Also unique to this strut is the barrel that holds the prop shaft, which screws in or out to adjust the length of the strut. This is useful in fine-tuning a mono or deep V.For 3/16" (4.76mm) prop shafts, strut length can be increased from 73 to 83mm in length.Requires: Stuffing tube to be cut shorter. And use of the stock mounting screws. SpecsLength: 73mm (2.87")Width: 33mm (1.29")Height: 40mm (1.57")Weight: 45.36 Grams (1.6Oz)Mount SpecsLength: 30mm (1.18")Width: 30mm (1.18")Screws: M3