Walter Stern Large Rubber Bulbs. Large size allows easy access for dispensing onto small sampling cups or test tubes. The small size conforms to current ASTM standards for rigidity of sample containers and rigidity of pipette tips. The color coding allows the user to easily identify the size of the sample as well as the character of the sample which is helpful in sorting out false positives. The color change ensures that only one set of bulbs will be needed for the same size sample. Small size saves a bulb change when only one half of the bulb is needed. Large size saves a bulb change when only one third of the volume remains in the bulb. Specifications for Walter Stern Large Rubber Bulbs 200-10 : CapacitymL: 10 Bore Sizemm (in.): 4 (5/32) Dia. x Lengthmm (in.): 35 x 51 (13/8 x 2) Unit: Each (10 ML) (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Walter Stern products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Pipets & Liquid Handling with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Walter Stern Pipets & Liquid Handling. 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 Walter Stern Large Rubber Bulbs 200-10/ 56341-243 we carry a full complement of Pipets & Liquid Handling as well as other product offerings from Walter Stern. We also carry a full line of Walter Stern accessories to help meet your laboratory and scientific needs. For a complete selection of Walter Stern Pipets & Liquid Handling please visit our Walter Stern page. For more brand name Pipets & Liquid Handling please visit our Pipets & Liquid Handling store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Walter Stern Large Rubber Bulbs 200-10