Please read the profile before purchasing for a smooth transaction. This is a pre-assembled 4-axis robot arm that allows you to enjoy authentic gimmicks. The mechanical design, with multiple joints moving in conjunction, is attractive, and you can freely control it using the included remote control. 4-Axis Movement: You can control four movements with the remote control: rotation, two arm joints, and opening/closing of the gripper (claw). Rechargeable: The main body is rechargeable, making it convenient and economical. The remote control uses batteries. Precise Construction: It is constructed with technique-based blocks with a complex combination of gears and shafts, allowing you to visually enjoy the moving mechanism. Design: It has a cool body based on white and black. Parts compatible with LEGO block standards are used, so you can combine them with your existing blocks for modification. [Product Condition] This item has been assembled once. As shown in the photos, there are no missing parts or noticeable scratches/stains, and it is in a clean condition. It will be disassembled for shipping, but please comment if you do not want it disassembled. [Recommended Points] You can operate it like a crane game, such as grabbing and carrying objects with the arm, making it a great educational toy for children, as well as a hobby or interior item for adults. It is also recommended as a gift for those interested in mechanical engineering and robots. How about an introduction to multi-joint arms?