Features Addition of burnishing compound and detergent keep parts cool and avoids drag during tumbling Used with stainless steel shots or media to the purchased separately Rotary tumblers polish rocks coin polish brass stones etc Process times are longer than vibratory finishing but a distinct advantage is that the surface of work pieces get work hardened Specification 1 Input voltage 220V2 Power 45W3 Drum size length 15cm Diameter 15cm4 Bidirectional rotation rotation can be timed five speed optional5 Size 230 180 100mm6 Capacity 3KG7 Total weight 5KG Package includes 1 x Rotary Tumbler Jewelry Polisher1 x Bag of Polishing Bead Details pictures