18 months and up. The Shell Bell Shaker set is a beautiful, nature-inspired take on classic handheld bell shakers. The shakers' easy-to-grip handles and overmolded tactile elements combine with their natural color schemes and authentically inspired details to offer toddlers a cornucopia of sensory exploration and stimulation. A gentle wobble feature encourages focus, hand-eye coordination, and balance, while identical bell sounds inspire group play and auditory exploration. Includes 3 bells that each measure 2.75" 2.75" x 4.75".