Product Description This is a luxurious 2-set of the Education LEGO MINDSTORMS EV3 "Core Set (45544)" and "Expansion Set (45560)". This set is perfect for learning robot programming and practicing for competitions like WRO (World Robot Olympiad). 【Recommended Points】 • Operation Confirmed: We have confirmed the power-on and start-up of the Intelligent Brick (main unit). There are no liquid crystal leaks, and the button operations are normal. • Lithium-ion Battery Included: A dedicated rechargeable battery that can be attached to the main unit is included. • Expansion Set Included: You can create complex models that cannot be made with the Core Set alone. 【Product Condition】 • Overall, there are no noticeable scratches or stains, and the blocks are in good condition. • The number of parts is generally complete, but due to the very large number of parts, please forgive any minor missing parts (the contents of the photos are all that is included). 【Shipping】 • We will pack and ship via Rakuraku Mercari Delivery. We are not considering selling the items separately. We hope to sell them to someone who will take good care of them.