ProBoat Sonicwake 36 adjuster plates.The stock trim tabs are a good size for the Sonic Boat Boat. What they lack is the ability to easily adjust the tabs. If you try to physically bend the stock tabs, the transom or screw holes can be damaged. Adding these adjusted plates will make it a breeze to adjust the tabs up or down.Includes:(2) Black anodized adjuster plates.(4) m4 x 12mm hex head screws : pn#mc-91292a117(2) m4 x 22mm button head screws : pn#mc-92095a479 (2) 4mm nuts : pn#mc-94150a335Requires:2.5mm Ball end Hex Driver. 3mm Hex Driver.