The magnetic stirrer constructed with a magnet assembled in and coating, resistant to corrosion and abrasion, and inert. Helps you easily get to the bottom of the deep containers or flasks to pick up the stirrers. Perfect accessory for magnetic stirrer. Perfect for chemistry and biology research, home-lab use. Features - Color: White. - Material: PTFE. - Size: 3.00X0.70X0.50cm/1.18X0.28X0.20inch. - The product designed with high lubrication, solid material lowest coefficient of friction. - With operating temperature up to 250 degree centigrade. Atmospheric aging resistance. Radiation-resistant properties and low permeability. - Corrosion resistance, for most chemicals and solvents that show, inert, resistant to acid and alkali, water and various organic solvents. - So obtain an elongation even when the temperature good mechanical strength. - A solid material minimum surface , is not liable to any substance. Package list: 4 x Magnetic Stir Bars