Bel-Art Spinbar Stir Bars Polygon. The stir bar is durable and inert; designed for high stirring speeds and long life. In addition to the Bel-Art Polygon Magnetic Stir Bar we carry a complete line of Alnico magnet stir bars as well as other product offerings from Bel-Art. We also carry other Bel-Art lab equipment and lab tools. We also carry other Bel-Art products such as Bel-Art stir bars Beakers Salters Lab Scopes Petri dishes lab glassware safety in the lab and lab tools. Specifications for Bel-Art Spinbar Stir Bars Polygon 371205078 : L x Dia. mm (in.): 22.2 x 4.8 (7/8 x 3/16) Unit: Each (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Bel-Art products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Laboratory Apparatus with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Bel-Art Laboratory Apparatus. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the Bel-Art Spinbar Stir Bars Polygon 371205078/ 58948-080 we carry a full complement of Laboratory Apparatus as well as other product offerings from Bel-Art. We also carry a full line of Bel-Art accessories to help meet your laboratory and scientific needs. For a complete selection of Bel-Art Laboratory Apparatus please visit our Bel-Art page. For more brand name Laboratory Apparatus please visit our Laboratory Apparatus store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Bel-Art Spinbar Stir Bars Polygon 371205078