It is the ideal solution to suit motor yachts and deep footed sailing yachts. Available in 4 different sizes of tunnel.The composite drive legs are pre-filled with oil and sealed for life for zero maintenance. Case hardened spiroconicalgears guarantee a silent, smooth and durable drive leg. Line shields protect oil seals from fishing linesand fowling, ensuring maintenance free operations. They have a good ratio quality/price, they are very light andvery strong, easily installed on the bow or on the stern.