ENVIRONMENTAL PROTECTION AND SAFETY: High quality plastic spool and nylon thread, good toughness, the rope is easily malleable, not easy to break. EASY TO USE: The reel is very easy to use and provides good grip and control. No fasteners are necessary for the connected closure. and it is very easy to control, take out and link back in. At the same time, it is very easy to remove the knots if necessary. EASY TO HOLD: The edge of the reel is polished so as not to hurt your hands, making you feel more comfortable when flying a kite. LOTS OF NETS: The package contains 1 kite line with a length of 100 meters, which can meet your small adaptation needs. EXCELLENT ACCESSORY: Compatible with homemade kites at home and school and can also be used to replace old kite strings.