The Preethi ECO PLUS MG-138 Mixer Grinder features 550 Watt motor. The mixer comes with 100% stainless steel jars with flow breakers for fine grinding. The steel blades of the mixer grinder are machine ground and polished for maximum grinding efficiency. The Preethi ECO PLUS MG-138 Mixer Grinder is rich in quality as well. It has high grade Nylon Couplers for smooth and hassle free operation. The clear and transparent polycarbonate domes & lids add to the quality factor. The sturdy handles are ergonomically designed. Once you buy the Preethi Mixer Grinder, you can be sure of its reliability. It comes with the assurance of lifelong free service. The bush life is extended by the oil-filled Sintered Bronze bushes. The mixer grinder is high on safety also. The mixer comprises of cut-off for protection against voltage fluctuation and overload. It has totally shock proof ABS Body and PVC insulated 3 core and flexi cord with 10 amps plug top & earthling. Rating is 30 minutes. When hot air emanates from the openings on the top cap, switch off the motor and wait for 3 minutes before re-starting. Do not add solid ingredients, when the motor is running The top of the grinder can be seen as a little yellow. The top is greased/oiled on purpose to avoid friction. It's meant to be greased/oiled, without it, the product will heat up very quickly.