Kit Avent new born baby bottles containing 2 260 ml capacity, 2 bottle capacity 125 ml, a bottle brush and nipple. The bottles are "plastic" transparent, easy to clean. So already we appreciate that everything is included in the pack! Nipple system that reduces the risk of colic for the child. I loved those products for my son, they are strong, and I seem to remember that you can buy them separately teats with speeds when the baby grows. Really great