Help your baby make new discoveries. The Baby Einstein stacking toy "Ocean Explorers," a 5-piece set of cups and accessories, encourages your baby to play and promotes their understanding of cause and effect as well as their fine motor skills. Four large cups with ocean motifs feature a fine texture, making it easy for your baby to grasp and play with them. With the purple shell-shaped water squirter, your baby can experience the principle of cause and effect while watching Opus the octopus change color in warm water! Perfect for playtime in the water and on the play mat.