The Baby Einstein Ocean Explorers Opus's Spin and Sea Suction Cup Toy engages baby’s senses at home and on the go with lights, rattles, textured arms, and vibrant colors Featuring Opus the Octopus from Baby Einstein Ocean Explorers, baby can press Opus to spin his arms and activate light up function. Opus gently rattles when shaken Strong suction cup base attaches the toy to virtually any smooth, hard surface, for play at home or on the go Promotes cause and effect learning, fine motor skills, and sensory discovery Wipes clean. Requires 3 AAA batteries. Dimensions: 6.21 inches x 3.63 inches x 8.22 inches