This crafty DIY electronics kit contains everything kids need to create a snuggly family of light-up plushies. Create a trio of forest friends with Cuddly Critters. The circuit is complete when the family holds hands making the plushies glow! Each Sew Science kit comes with a plastic needle and precut felt pieces to stitch together making assembly easy safe and fun. Sew Science kits also include the LED lights batteries and conductive thread needed to complete the circuit. Sew Science is a super cute way to teach kids about electricity and circuits and make STEM learning adorable and fun. Requires two CR2032 button cell batteries (included).