1) They work by turning a crank which twists a prop located on the bottom of the holding tank. To treat you depress a button which allows granules to fall out onto the prop which is being turned by the crank. The prop in turn propels the granules 5-10 feet around.

2) They can use granules of just about any type as long as they are designed to be used around homes and gardens.

3) They all have adjustments so that you are able to control the rate at which the granules fall out the bottom.

4) They are all portable and can go where you walk - a great advantage over push or pull type applicators.

5) All propel granules evenly and consistently. The differences between the three is the unit pictured on the left is an entry level spreader designed for small or light jobs. It's holding tank is the smallest of the three but it does work and is adequate for most applications of 5,000 feet or less.

WHERE TO USE IT: All can work well for treating most any yard, plant bed or hard to reach area under decks or behind structures. All are easy enough to carry up steep terrain and all allow you to treat where conventional push or pull type spreaders simply cannot go.