Also called an “Amish puzzle ball” or clutch ball, it was popularized by Montessori educators. Our balls do not come apart, so are not actually a puzzle, but your baby will examine it as if it were a puzzle. Sensory Puzzle Balls are used in many ways with babies from 3 months of age – attach a strap and hang above your baby from 3 months of age to promote kicking. At about 5 months your baby will begin to move the ball with her hands and begin to try and clutch it. The segments make it easier for a baby to clutch than a regular ball. And when it drops, it won’t roll far. It’s the perfect first ball for baby. Measures 5″ in diameter.