4 DeLaval Milking Liners De Laval 06 Shell Milkers BOX of 4 (FOUR)  Brand New, Factory Boxed  GENUINE DE LAVAL 01 DELATEX PUNCTURE-RESISTANT MILKING MACHINE LINERS for USE with DE LAVAL 06 SHELLS.  These Liners are DeLaval's Part Number: 8303600-85. 4  BRAND NEW  DELAVAL  06  PUNCTURE-RESISTANT  LINERS From the Manufacturer ... The milking machine liner is the only part of the milking equipment that is in Direct Contact with the animal. The quality and characteristics of the liner greatly influences the milking performance and animal's health. It is extremely important to use the best possible liner type and to make sure you do not milk with old, worn liners.  Original liners, specifically made for the equipment used, maximizes performance.  DeLaval Original Liners are made from some of the best rubber compounds available.  Their softness plus elasticity are adapted to the milking machine and cows teats - optimally stimulating the cow to achieve high milk production.  Tests show DeLaval original liners can give up to 0.5 liters more milk per cow, per day, than non-original liners. Note: Though it does not show up very well in the picture, the bulge, closest to the right side of the picture, is grooved, and looks almost like a gear.  It is not smooth.  That is the Puncture-Resistant Tip. FEATURES,  SPECIFICATIONS,  and  BENEFITS to YOU - Manufacturer: Genuine De Laval - Item: 01 Delatex Puncture Resistant Liners              For Use with the De Laval 06 Shell - Part Number / Model Number: 8303600-85  or  8303600 - Quantity: Box or 4 (Four) - Condition: Brand New.  Factory Boxed. - Length: 10.25" - Color: Black - Has a Puncture-Resistant Tip - Helps Deliver Peak Performance and Control Farm Profitability   ***  FAST  PRIORITY  MAIL  SHIPPING  WITH  INSURANCE  *** Use Only the Best on Your De Laval System ... Use Genuine De Laval Puncture-Resistant Liners. Look This Item Over ... Just Don't Overlook It.