Stack, sort, fill, squish and splash! A set of 5 Stacking Cups plus 5 Treasure Coins! Our Ocean Stacking Cups can help your kids explore marine life through sensory play. Stack them up, nest them, hide objects under, texture stamp with sand or playdough...and match the coins with their cup! Learn about marine creatures as each cup features a different ocean animal: whales, sharks, turtles, octopus and crab! And the cups to bath time; scoop and pour, sink and float the cups or use as containers in messy play.