The present invention relates to a reel system (1) which enables to open and close swimming platforms used particularly in boats and yachts in a balanced way and without synchronization problem and essentially comprises at least one power source (2) which provides the power necessary for the system to operate; rope (3) which holds the swimming platform (P), lowers it down and lifts it up; reel (4) which move the rope (3) upon it rotates; stabilizer (5) which balance the length of the rope on both sides of the platform; a switch (6) which stops operation of the power source (2) when the platform (P) is opened; and a trigger (7) which activates the switch (6).
