Heavy-duty 1/8 hp motor allows the user to shake flasks, bottles, or jars up to 1000-mL. Featuring a fixed 10° arc and adjustable oscillations up to 600 per minute, the shaker can be operated in continuous mode or timed from 1 sec to 99 min 59 seconds. Bright LED screen clearly displays oscillations. What's Included: side arm shafts, finger clamps, and 6.5-ft (2-m) power cord with plug. Variable speed from a gentle rocking motion to violent agitation Solid weight and design prevents creeping, crawling, or walking during use Easily shakes loads up to 30 lb (13.6 kg).