This is one of the finest precision seeders available. The unit comes with a 0.26 gallon clear hopper which is very easy to empty and has a quick release that facilitates changing of rollers. It singulates and spaces small seeds accurately, which will help save you seed and time. Uses special anti abrasion plastic rollers to prevent static electricity. The JP-1 works best for small seeds and with only a small amount of seed in the hopper. Adjustable handle for height and offset. Adjustable depth control. With 20 different size rollers available, you can accurately seed a large variety of crops.