Stack and tumble play meets fun in the tub with our 2-in-1 Silicone Stacking Cups! The set comes with seven colourful cups, each with patterned holes on the base, so water can flow through them like a waterfall. These stacking toys are also great for sensory sand activities, whether on the beach or in your garden, and you won't have to worry about the mess as they're very easy to clean. Learning to build, nest, balance and pour are all excellent ways to develop your youngster's fine motor skills and hand-eye coordination. Bigjigs Toys Silicone Stacking Cups - 7 Piece Rainbow Stacking Toys