Willow (same brand as the manufacturers of the Willow Go and Willow 360 pumps) cooler in excellent condition. *Price is final. Discounted shipping is included in this listing* Specs: Holds up to 16 oz of breast milk (that’s 3-4 pumping sessions on average) Stores breast milk at a safe temperature (below 59°F) for up to 24 hours Built-in gel ice pack sits inside lid to remain separate from breast milk and cools milk without the need for ice cubes Made of durable, double-walled stainless steel.