6 PCS New Magnetic Stirrer Mixer Bar，TYPE C PTFE Cover Stir Bar<br /><br />Quantity :<br />Diameter Length<br />1 * 8mm 50mm<br />1 * 8mm 35mm<br />1 * 7mm 31mm<br />1 * 7mm 25mm<br />1 * 6mm 20mm<br />1 * 6mm 15mm<br /><br />PTFE and high-quality permane