Price negotiation possible. The LEGO Education Mindstorms EV3 Core Set, with a variety of parts, is perfect for robot construction. - Set Contents: LEGO Education Mindstorms EV3 Set - Number of Parts: Includes a variety of parts - Accessories: Assembly instructions, sensors, motors - Colors: Red, blue, black, white, gray, green - Part Condition: Parts are organized and can be confirmed. There are a few sets missing one or two parts. Please check photos 3 and 4. Photo 4 is missing the balls that go inside. Thank you for looking.