Baby Ball Set: Four unique balls with dazzling colors, shapes, and textures! Fun Sounds: Play and squeeze for a rattle or a squeak! Includes: 4 types of sensory balls for playful learning. Batteries: 3 x AG13 (1.5V) are required and included. Age: These sensory toys are recommended for babies 6 months + Watch your little one rattle, squeeze, squeak, and play with the Ball-A-Balloos from B. toys! This classic playset features four wild and wacky rubber balls that introduce babies to different shapes and colors while improving their hand-eye coordination. Use the pink ball as a soothing teether for those who like to chew, or watch the textured ball light up when tossed around and change colors when you shake it! Each ball has a variety of playing options and will keep your toddler engaged and entertained throughout the day.