This crafty DIY electronics kit contains everything kids need to create a snuggly family of light-up robot plushies. 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 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 makes STEAM learning adorable and fun.