Watch Your Ocean Friends Come to Life! Learn about the importance of ocean conservation with the PlaySTEAM Hammerhead Shark & Manta Ray. Connect the propulsion unit to your recycled water bottle and watch the fish swim straight or in a circle. Every year, more than 8 million tons of plastic are dumped into the ocean. Part of the Love the Ocean Series, these products strive to encourage children to recycle and avoid plastic pollution to preserve our ocean ecosystem. Complete with a detailed learning booklet, children can learn about ocean conservation while creating their own ocean friends! Construct your hammerhead shark and manta ray from recycled materials for an environmentally responsible project! No glue required.