Philips Avent Double Electric Breast Pump Premium-Enter a new era of expressing with a perfect balance of suction & nipple stimulation inspired by the natural way babies drink. The Philips Avent electric breast pump keeps milk flow at an optimum & gently adapts to your nipple size & shape.-– Natural motion technology for a quick milk flow:-Express more milk in less time with a cushion that stimulates the breast to express milk just like baby. It seamlessly adjusts from stimulation mode to expression mode, and applies just the right amount of nipple stimulation and suction for maximum milk flow. Based on milk flow initiation time (time to Milk Ejection Reflex – MER) results.-– One size soft and adaptive silicone cushion:-One size fits all. Because we all come in different shapes and sizes, the silicone cushion gently flexes and adapts to fit your nipple. It fits 99.98% of nipple sizes (up to 30mm).-– Express without leaning forward:-Feel relaxed as you express thanks to a design that lets you sit upright rather than having to lean forward. No need to lean forward, clinically proven comfortable expressing position. Based on product clinical trial results with 20 participants (2019); 90% of participants find the expressing position comfortable (single electric); 95% of participants find the expressing position comfortable double electric).