Magnetic Stir Bar Combo Pack Large Sizes - 30mm 45mm 60mm 70mm

New, unused PTFE material. Magnetic stirring bar, also known as a stir "flea." These are larger sizes than what are typically offered. Your order is shipped quickly from the United States. Each is octagon shaped with a pivot ring for decreased resistance. You will receive 4 stir bars for one price. 1 each, 30mm long by 8mm wide (approximately 1.18 inches by 0.31 inches). 1 each, 45mm long by 8mm wide (approximately 1.77 inches by 0.31 inches). 1 each, 60mm long by 10mm wide (approximately 2.36 inches by 0.39 inches). 1 each, 70mm long by 10mm wide (approximately 2.75 inches by 0.39 inches).