The 88000 AAA Battery Box provides a reliable power supply for robotics cars, train models, and technical projects. Compatible with major building block systems, it serves as a core power module for advanced STEM applications. Universal Compatibility: Works seamlessly with popular building block brands and mainstream construction sets High-Capacity Power: Accommodates 6xAA batteries for extended operation Modular Design: Easy integration into robot and train frameworks Industrial Durability: Constructed with fire-resistant ABS; tested for over 1000 connection cycles Model: 88000 Power Module Power Input: 6xAA batteries (not included) Interface: Standard building block connector Dimensions: 6.5 x 3.2 x 4 cm Color: Grey Material: ABS+PC engineering composite materials Package Contents: 2 x Building block battery boxes Note: The package includes only the items listed above. Other accessories are not included. Due to lighting effects and monitor settings, the actual color of the product may vary slightly from images. Measurement tolerances may vary by +/- 1-3 cm.