The Yookidoo Spin 'n Sprinkle Water Lab bath toy creates a double chain reaction of surprising water effects. The test tube container has volume marks and a detachable funnel for filling, pouring and playing. Fill the test tube with water and pour it into the water gauge funnel to see the wheel spin and create 10 surprising water sprays from the pipeline. Pour water into the other funnel to spin the googly eyes and see a stream of water flow from the mouth, spinning the propeller. The Yookidoo Spin 'n Sprinkle Water Lab bath toy is a wonderful way to introduce little scientists to STEM based learning. Sensory Play Sensory play with bath toys can help support your child’s development. Sensory toys like Yookidoo bath toys can support communication, motor skills and independent thinking.