Easy to install because it eliminates the trailer mounted gin pole. However, the Mast Stepper II system does require that the trailer's forward mast support be 30" taller than the mast step. The mast is stabilized by tying a trap wire on each side to the front cross bar. The kit includes all necessary lines, shackles, blocks and instructions. Purchase winch separately. Recommended for Wave, Getaway, Hobie 14, Hobie 16, or Hobie 17 catamarans.