• Make a unique squishy stress ball with this quick science kit
• Hands-on lesson in chemistry and science geared towards kids
• Learn about mass and density, polymers and following instructions
• Includes all necessary supplies and a full-color instruction manual
*Returns can only be made for Store Credit, and can be returned to our shop, or by mail within 14 days of purchase.
*Bird in the Nest is not responsible for return shipping.