This has 6 different sized “chains” of balls in 4 pieces. Two pieces have 4 balls, and two pieces have 2 chains of 3 balls as pictured above.
The objective is to form the balls into a perfect Pyramid of 20 Balls.
Quite intriguing till you know how it is done.
Supplied complete with instructions at a very affordable price. Makes for a good promotional item or give away.