Easy to Fly Kite for Kids and Adults. After many adjustments and attempts, this kite can fly easily in the wind of 5-20mph. To further to ensure the kite flying effect , each kite is equipped with 4 tails of 3 meters to increase the load to make it reach to balance. Easy to assemble and take off straight away. This butterfly kite has a simple structure and comes with an assembly instruction card. You can also watch the assembly video by scanning the QR code, easy to complete in 1 minute. Plus, each kite comes with a handle with 300ft of sturdy kite string, just hook the connector to the kite before flying. Unique Design, Flaps Like a Butterfly. Kite butterfly wings aren't completely rigid. It does feel like a butterfly flapping once it is up because of that attribute. The kite can pull out all the included 300FT kite string, so it can go high on a windy day. Lots of fun! High-quality materials and excellent workmanship ensure the quality of kites. The kite itself is made of vinyl and is pretty durable .Good quality strings for coming with each kite , and will not break easily. To fly a kite, the wind speed should be between 5 to 20mph.If too windy it might twist and turn and switch direction quickly and aim for the ground, decreasing altitude rapidly. If you are looking for an easy to fly and assemble kite then, I suggest you look into this one.