Did you know that as a rough guide the string should come up to your shoulder when you place one stick on the floor. If its longer cut it! A pro diabologist changes his string for each stage performance. For the rest of us who are still trying to work out how to juggle two diabolos or even one dont panic as you dont need to buy a 100m every week. All the same we recommend you get at least 25m and change as soon as your string starts to fray.