The Shanti Spleever (sleever/splicer) is designed to allow you to repair most high performance stunt kite lines (200 lb. test and larger) and to sleeve lines of all sizes. If you sleeve your lines at knots, your flying lines will be approximately 50% stronger than if you don't. Sleeving is simple and requires only a few minutes. With a little practice, the included instructions will allow you to splice broken lines together and retain 100% or original line strength. The Spleever repairs broken kite lines and protects lines at knots. The kit includes complete instructions and 4 sleeves for knots. The Shanti Spleever is a stunt kite accessory your kite bag shouldn't be without!