Engineered Xceptionalceptional FOR YOU Features that make our liners superior. LET'S GET STARTED EVOLUTIONEVOLUTION X BENEFITS A REVOLUTIONREVOLUTION in High Performance Operates at the lowest accepted vacuum levels in the industry. Engineered for virtually no slippage. Twist-resistant from top to bottom. Milks out quickly, clearly and completely. Accommodates a wide range of teat sizes. Fits perfectly into stainless steel 06 style shells EVOLUTIONEVOLUTION PRODUCTs & ACCESORIES OVAL X1 Gentle, low vacuum levels