This is an expansion kit that allows you to upgrade the "Electric 3-Stage Cruun," which automates ball circulation, to a more impressive 6-stage specification. *This product is only an expansion kit. The "Electric 3-Stage Cruun" main unit is not included. ◆ The automatic ball circulation remains the same, so you can just watch. ◆ With 6 stages, the continuity and impact of the lottery are improved. ◆ The lottery probability for 6 stages is an astonishing 1/3600. This kit is an expansion part based on the "Electric 3-Stage Cruun" main unit. Anyone can easily assemble it without tools. This product is new, but due to being 3D printed, there may be some layer lines or burrs, so please be aware of this. Before shipping, we will check the contents and carefully pack and ship them, but in the unlikely event of an initial defect, please contact us before using the product and before giving a review. Returns are not possible after use or after giving a review, so please understand. 【Notes】 ・The "Electric 3-Stage Cruun" main unit is required to use this kit. ・When assembling and using this kit, be sure to follow the instructions and precautions in the instruction manual included with this kit, as well as the instruction manual for the "Electric 3-Stage Cruun" main unit. 【Product Specifications】 External dimensions when 6 stages are completed: Approximately 10cm wide x 13cm deep x 47cm high Weight when 6 stages are completed: Approximately 560g (including batteries) Material of this kit: PLA Cruun configuration of this kit: 3 holes / 4 holes / 5 holes *The "Electric 3-Stage Cruun" main unit, batteries, and metal balls are not included in this kit.