Trim Kit High Performance HP double pistonLaser-cut electro-polished 304 stainless steel blades with heavy-duty hinges. Corrosion-resistant upper and lower mounting brackets. Designedfor multiple engine applications and limited stern space. Moulded blade design allows extra space to run engines. Suitable for very fastboats.Kit consists of:- 4 drive cylinders (5426003 Rif. Originale 15056-001)- 2 stainless steel aileronscontrol panel and extensions are sold separately