Highlights Dual layer seal to prevent leaking More bigger storage – 250ml Safe and healthy to store and freeze breast milk Environmental-friendly Easy to store and freeze breast milk Can record date, time and volume Gusset bottom allow it to stand upright Specfications Material : Low-density polyethylene (LDPE) Capacity : 5oz / 8oz Quantity in 1 box : 30Pcs Product Description This breast milk store bag is made of good quality Low-density polyethylene (LDPE) that is environmental friendly and healthy. This product is design with dual layer sealing so that it can prevent the milk leak. It built with a space to record the date, time and volume of milk. The volume mark line of this product is also accurate after milk is store. The bottom of this product is design with gusset so that it can be standing steady and save the space when we keep it in the refrigerator.