1. Exquisite Material Selection: Made from a strength aluminum alloy, thick and wearresistant, featuring a surface drawing process, density steel balls for smooth, flexible, and stable rotation. Includes 4 screw mounting holes, white foot pads, and strong loadbearing capacity. Lifespan exceeds 5 years. 2. Product Features: Durable, waterproof, thick and wearresistant, rustproof, impactresistant, dropresistant, sturdy and, with nonslip rubber padding to reduce tabletop cushioning, ensuring stability and preventing slippage. Rotating surface diameter: 250 mm – 2000 mm. 3. Installation Instructions: The inner and outer rings have different heights, and the single ring is relatively thick. When using the inner ring, the rubber foot pads can be removed, and the screw can be directly fixed to the workbench for stability. Size is fixed. 4. Application Scenarios: Suitable for glass, wood, marble, etc., such as dining table centerpieces, art display stands, wooden trays, rotating media towers, TV/monitor mounts, mechanical installations, potted plant trimming, etc. Easy to install.