Fishing Reel Line Spooling Tool: Compatible with sleeve-type electric screwdrivers with 6.35-mm hexagonal shaft and three-jaw drill chuck-type electric screwdrivers. Easy to Use: Press the product into the turntable gear of the reel and use directly. Fishing Line Spooler Tool: To prevent line issues, check rotation direction and start winding by gradually increasing rotation speed. Suitable for various reel types. Fishing Line Spooler Machine: Universal fishing line screwdriver bit. Compact and lightweight, detachable for easy carrying. Material: Made of alloy and sturdy PP materials, wear resistant for long-term use. Size: 5.9cmx6.2cmx7.9cm/2.32inchx2.44inchx3.11inch. Package Includes: 1 Piece Fishing Line Spooler. Color: As shown in the picture. Note: When stopping winding, do not stop the rotation of the electric screwdriver. Rather stop it by pulling it away from the handle gear section while it is still rotating.