The kit includes: - the push rod - the adjustment rail to be mounted on the bridge - the trolley with pulley - the mast attachment - - Adjustable mast rake kit for dinghies.Often used on the 505 series.This ingenious system allows you to adjust your mast track with precision.Kit includes: - push rod - deck - mounted adjusting rail - trolley with pulley - mast attachmentDynamic Rig AdjustmentHorizontal Mast RamThese new systems have been developed using Allen Brothers wealth of experience with a number of craft in mind and can be customised to each boat with great ease. Examples of applications include the 505 horizontal mast strut (kit available here), Fireball vertical mast strut (other kit = A3211) and Graduate GNAV system (other kit = A3212). In all cases we provide a complete kit. Technical documents can be downloaded here