Copyright 1988, Quebarts Ltd., Trolbourne Ltd. Greenwich, England;
Patent Pending No. 8901362;
made by Binary Arts / ThinkFun late 1980's.
(metal springs and plastic, 6.5 inches)
Twist, tilt, and shake to get the six balls (2 red, 2 blue, and 2 yellow) to their proper ends. Although mainly a dexterity puzzle, it does take a little logic to route the balls, where it may be necessary to temporarily send a ball to the wrong location before sending it to its destination.