E-Blox Power Blox Builder 4-in-1 STEM LED Building Bricks Set Make your creations shine with E-Blox Power Blox Builder 4-in-1 STEM.org Building Bricks Set! This innovative kit lets kids light up their LEGO-compatible builds like never before. This 4-in-1 kit shows you how to build four cool 3D light up structures without any wires! E-Blox Power BloxTM patented technology uses tin plated parts that are conductive so you can connect them between the battery module and LED modules to add lights into any brick structure you can imagine and build. Contains 46 parts including 9 unique conductive parts, two 2-way Green-Red LEDs, 6 tin plated conductive parts, and 1 Battery Module. Requires one 9-volt Battery (not included). STEM Authenticated Educational Product Build fine motor skills and stimulate creativity Build 4 different 3D light up models using the included step-by-step guides Patented technology allows you to easily connect lights without any wiring 46 pieces including conductive parts, LEDs, battery module - everything you need Compatible with major brands - mix and match for unlimited possibilities For Ages: 5+ Requires 1x 9-volt Battery (not included) With E-Blox Power Blox, kids can bring their brick builds to life by integrating lights into their creations. The patented conductive parts and LEDs make it easy to add illumination without any complex wiring. Just connect the pieces and watch them glow! Young builders will love seeing their models shine as they follow the included guides to create 4 different 3D light up builds. And the fun doesn't stop there - the possibilities are endless when they use their imagination to combine this set with other building bricks. Give your child the gift of creativity and STEM learning with E-Blox Power Blox today! LI Toy Game is a small family-run business on long island, with a physical retail store strong online presence. We have an excellent reputation because we sell good stuff, describe it accurately, and take care of our customers! We are closed on Mondays, and ship Tuesday - Saturday, and also offer local pickup at our store. Thanks for looking, and have a great day!