Finally they are here! Our rings for Sky Hook, Ring Chaser and Co. They are made of high quality wood and come in three different versions. Ring 1 has five holes and a total diameter of 40cm. The circle in the middle comes to a diameter of 15cm and is therefore the most demanding ring for a Sky Hook jump from hook to hook. The ergonomic shape of the ring makes it very comfortable for the hands and is ideal for long ninja training sessions.