Features: _x000D_1. With the least of solid material surface tension, high and low temperature resistant, corrosion resistant, non-toxic._x000D_2. Widely used in petroleum, pharmaceutical and chemical education research, analysis room to do a stirred solution of use._x000D_3. Usage: Put PTFE stirrer mixers in the magnetic stirrer, stir or heat at the same time._x000D_4. PTFE and high-quality permanent magnet magnet refined, with wear-resistant, high temperature resistance, chemical corrosion, stable operation and other advantages._x000D_5. Non-toxic: with physiological inertia, as artificial blood vessels and organs long-term implanted in vivo no adverse reactions. _x000D__x000D__x000D_Specification:_x000D_Condition:100% Brand New_x000D_Material: PTFE and high-quality permanent magnet magnet_x000D_Color: As shown in the picture_x000D_Size: Approx._x000D_4x8mm / 0.2x0.3in _x000D_5x10mm / 0.2x0.4in _x000D_6x15mm / 0.2x0.6in _x000D_7x25mm / 0.3x1.0in _x000D_7x20mm / 0.3x0.8in _x000D_9x28mm / 0.4x1.1in _x000D_8x30mm / 0.3x1.2in_x000D_9x35mm / 0.4x1.4in (Widest Diameter x Length ) _x000D__x000D__x000D_Package List: _x000D_8 x Magnetic Stirrer Mixer Stir Bar 1With the least of solid material surface tension, high and low temperature resistant, corrosion resistant, non-toxic. 2Widely used in petroleum, pharmaceutical and chemical education research, analysis room to do a stirred solution of use. 3Usage: Put PTFE stirrer mixers in the magnetic stirrer, stir or heat at the same time. 4PTFE and high-quality permanent magnet magnet refined, with wear-resistant, high temperature resistance, chemical corrosion, stable operation and other advantages. 5Non-toxic: with physiological inertia, as artificial blood vessels and organs long-term implanted in vivo no adverse reactions