Challenge your mental skills while having loads of fun! Duncan's Color Shift Puzzle ball can be solved by matching all of the colored balls with their corresponding colored rings. There are 12 holes with only 11 filled with a colored ball. Utilize the empty hole to maneuver balls around to find their matching hole. Once all balls match, the puzzle is solved! How fast can you do it? Rainbow Ball Puzzle: this problem-solving ball is a hands-on game that can improve basic problem-solving skills. It is often used by teachers and trainers to boost concentration and color-sensitivity among young children Colorful Fidget Ball: the color shift puzzle ball has 11 balls in different colors to be matched with their corresponding colored rings on the outer shell. The one extra hole is meant to be utilized to shift the balls until the user finds the right hole Puzzle Ball: the color-matching ball is easy to store as a part of a kids toys and other playtime accessories. The multi-colored ball can be carried anywhere due to its compact form and lightweight. Good Grip: the ball is easy to hold and grip, in the hands of children, educators and parents. Durable construction means the ball can withstand the slips and falls Engaging Toy: this fun puzzle ball can keep the kids engaged in a fun-filled manner. It can be very handy for