The HAAKAA Gen. 2 Silicone Breast Pump is made of 100% silicone and sticks to any flat surface with its suction base. It is compact size perfectly into any handbag or baby bah and requires no hard work to use. The increased 100/150ml capacity lets you express even more milk at once, and the Silicone Breast Pump Cap fits securly over the top of your pump, protecting it from accidental spills and keeping your precious breast milk safe. This product may be covered by your FSA/HSA account.