Best anti leak suction facilitating mechanism weight straw
Allows smooth flow of milk only when sucked
prevents air to get in the mouth of the baby- no air swallowing or feeding problems
Made from food grade silicone - safe, durable and elastic.
Strategically designed adaptor/valve with double air vent- prevents air to enter or trap in the bottle
holds the straw in the bottle by connecting it to the nipple (nipple not provided).