Specifications include, but are not limited to: I. Engine 1. 12 horse power or more 2. Single or dual cylinder II. Pull behind models 1. Must be a pull behind trailer type not vehicle mounted III. Hopper Capacity and size 1. 20 cubic feet to 25 cubic feet or more 2. 80 inch by 36 inch or slightly more IV. Spread Width and Application 1. Spread width must be variable to spread from 10 foot up to 40 foot 2. Spread application must be variable from .40 cubic feet up to 12 cubic feet per 1000 cubic feet V. Tires 1. 4-Ply, 26x14x12 or more VI. Weight 1. Tow behind model with engine 2. Must not exceed 1400lbs VII. Ground Speed 1. Up to 8 mph or more VIII. Operator Control or Computer smart Control 1. Programmable presets allowing you to switch between widths and rates as you move 2. Onboard rate Calculator 3. Instant throttle down control 4. Instantaneous belt and spinner speed control