Refill for Hedgehog and Hare. Use with ATB-217 to make adorable baby sensory toys. Easy for baby to hold and explore the textures of the silicone, fabric, ribbons and optional crinkle material. Silicone is safe for babies to chew, tug, squeeze and shake. Includes 2 silicone rings. Dishwasher safe. Silicone rings are made from 100% baby-safe food grade silicone (safety-tested to be free of BPA, phthalates and harmful metals).