Viewloader eVLution with Y-Board Electronic Feed Loader Jam-Free Force Feed Flow System with a Feed Rate of up to 19 Balls per Second. Includes new flexible 6-blade propeller and raceway feed shelf for fast and uninterrrupted ball flow. Adjustable Feed Rate for Longer Battery Life. Includes an externally adjustable feed rate switch for longer battery life and LED light low-battery indicator. Largest Capacity and Lightest Weight Force Feed Loader on the Market. Re-engineered with lightweight, extreme-impact resistant polymer for unmatched durability and performance. Enhanced "Spill Proof" Spring Loaded Door. Provides secure fit and closure. "Spill Proof" design can be locked in the open postion during play.