Kite handles are instinctively easy to use, even for kids. Let line out by rocking them in your hand. To take line in, just wind it on with your other hand. Handle will hold about 300' of 20, 30 or 50-lb. line or 200' of 75 or 100-lb line. 3" x 5", they take in 7" of line per turn. Line not included.