Rotary Tumblers are stable well balanced units that are capable of processing larger work pieces with heavier media. Process times are longer than vibratory finishing, but a distinct advantage is that the surface of work pieces get work hardened. Barrels are multi sided, made of tough polycarbonate, are leak proof and will not corrode or rust. Use with all types of media including steel shot. Addition of burnishing compound and detergent keeps parts cool and avoids drag during tumbling. Features include variable speed, a programmable timer, forward reverse and auto shut off with buzzer. Color may vary.