High quality aluminum alloy - - - the rotating cup machine is made of high quality aluminum alloy, strong and durable, not easy to rust, can be used for a long time. High quality motor - - - our reliable motor does not get hot even in continuous rotation, solving the problem of noise caused by uneven force. Quiet and stable - - - this disc machine is made of metal with metal bearings, the base is solid and stable, quiet. The all-metal structure provides a sturdy frame to hold the glass up high. Adjustable Foam - - - The adjuster comes with an adjustable foam that fits most cups and mugs. It is easy to assemble. Non-slip design - - - this cup carousel has a large foam that can grip your cup to prevent slipping and pouring.