Features: Release your child creativity and hands on skills with our Fiber Optical Light Kits, featured a mesmerizing color changing effect that bring the magics of technology to life. Use safe and ecofriendly plastic and metal materials, this science project kits includes fiber Optical components that are easy to assemble without any soldering required, making it great science project for families. Designs for children aged 6 and over, this educational tool is great for use under parental supervision, fostering a fun and engaging learning experience. Perfect for family bonding activity, school science classes, hobby group project, or as a unique holiday gift, this science kits offer endlessly opportunities for exploration and discovery. Let this innovative STEM toy inspire mind, combining the thrillings of technology with the fun of creation, while seamlessly fitting into educational and recreational settings. Specifications: Product Dimension: Approx. Base length 12cm/4.72inch Component: Plastic, Metal Power Supply: 2xAA Batteries(NOT included) Package Includes: 1 Set Fiber Optical Lights Science Project Kits Toy note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.