Thank you for viewing. This is a discontinued model from Daiichi Seiko, used for rewinding fishing line. With a high-speed gear ratio of 1:2.5, it winds over 30 centimeters per spool rotation, saving you time. The main unit hasn't been used much, so it's in good condition. However, the box with the instructions is damaged, so please refrain from purchasing if this concerns you. There are no problems with use if you understand the instructions. It's recommended for those who frequently change line on their reels. Please refer to the photos to assess the condition.