Features: brand new and high quality Made from lab-quality materials,use Advanced magnetic coil technology, strong magnetic force,working smooth and long service life.The panel marks the center where the magnetic force can be strongest, help to hold on the stir bar and preven it flings of. Easy to clean and durable. Powerful and efficient brushless motor makes it stirring fast. The powerful and efficient brushless motor is smooth operation and has long life. Magnetic stirrer adopts inernational advanced design concept and manufacturing technology, smooth and perfect appearance , compact and firm structure, high versatility, simple operation. It can be used in the laboratory, classroom, workshop or home. It can also be used for beer brewing, wine making, home chemistry, aromatherapy, essential oils and more. Specifications: Material: Black Crystal Glass Power Supply: Single AC 50HZ 220V10% Input Power: 5W Electrode Output Power: 1W Speed Range: 0-4000 rpm adjustable Noise: Less than 40 decibels Allowable Ambient Temperature: 5-40 Size: Approx. 4.56x4.56inch(11.6x11.6cm) Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Magnetic Mixer