Features:Perfect for breastfeeding working mothersFor use with Pump In Style or Lactina Breast PumpIncludes a 3 foot cordVery handy This adapter can come in quite handy and it works well. I didn't have any issues connecting it to the pump or the car.This is the ticket! Love this. I use it all the time when I am traveling to see family. I pump in the car while my husband drives and we have a fresh bottle when we arrive at our destination. It saves the time of heating a bottle and allows you to give your baby fresh milk. Fresh is suppose to be better than cooled and heated milk.