Rock tumblers are made in a wide range of sizes for different types of use. The three basic categories are described below.

TOY ROCK TUMBLERS
The smallest and least expensive tumblers are toy tumblers with a plastic body and barrel. These machines typically sell for between $40 and $80 online or in local toy and craft stores. The advantage of these machines is their low price. However, they only tumble a few ounces of very small rocks, they have a very short life before they wear out, and the rocks tumbling in the plastic barrel make a lot of noise – noise is a very common complaint about toy rock tumblers.