Stir Bar Kit, Magnetic, PTFE, Mirco. Stir Bar Kit, Magnetic, PTFE, Mirco, To Consist Of The Following: 6ea CG-2003-12, 6ea CG-2003-14, 6ea CG-2003-16, 3ea CG-2003-10, 3ea CG-2003-13, 3ea CG-2003-17.PLEASE NOTE: STIR BAR KITS ARE AVAILABLE WITH AN ASSORTMENT OF OTHER STYLES AND SIZES. PLEASE CONTACT TECHNICAL SERVICE FOR MORE INFO.