The-Eliminator Spinner Plate is an innovative new design that can be added to any deer feeder with a 1/4" motor shaft. When the motor spins, The-Eliminator drops down and throws feed. When the feeding cycle is complete, the spring-loaded shaft returns the plate to the top position. Mount The-Eliminator against your funnel or downspout for a tight seal. It excels as a spinner plate for truck, ATV, and UTV feeders because it is nearly immune to the bouncing and vibrations typical of this application. Does The-Eliminator cost more than tradition spinners? Yes, but with the ever-rising price of corn and protein, it could easily pay for itself in a few, short months. Note: This is the RECTANGULAR model. We also have a ROUND model available.