CHICAGO ELECTRIC POWER TOOLS 90979 DUAL DRUM ROTARY ROCK TUMBLER Get a smooth polished finish on rocks, semi-precious stones, glass, even metals! This quiet low-speed tumbler is designed to run for weeks at a time, ensuring a smooth, lustrous finish on almost any material. Two generous 3 lb. leak proof capacity drums Rubber barrels for quieter operation Model 90979 Weight 9 lbs On/off switch built in Side stops Dont forget to get your supplys look in my store for more lapidary equipment. I will even tell you how to make the drive belt last for months instead of days. Of course you may be able to buy it elsew cheaper but I ship next day not next month, when do you want it?