The Viper Venom Series Low-Speed Buffers are heavy-duty, walk-behind floor machines designed for polishing floors. They feature all-metal construction and a powerful motor, with options for 17-inch or 20-inch buffing pads to suit various floor maintenance needs. 63 dB What’s In The Box – Viper Venom VN1715 or VN2015 Low-Speed Floor Buffer – Pad Driver – Hook Pad Driver Storage – Owner’s Manual.