Use the COUPON CODE: INFLATION2017SALE at CHECKOUT.Upgrade to silicone! This wonder material resists oils, butterfat, and water, keeping the liner free of bacterial build-up. Silicone is tougher and more resistant to backflushing chemicals (including iodine) than synthetic rubber. These blue silicone inflations will last up to 5,000 milking with no initial break-in time. Silicone protects udder health, just like you do! Sold individually or as a set of 4. Choose from the drop-down menu.