This is the Cogny Kids Honeycomb Cover for baby bottles (Sky Blue). This bottle grip aims to foster your baby's ability to "drink independently." The honeycomb mesh structure stimulates the baby's fingertips, making it easier to hold. It's made of soft, BPA-free silicone and is lightweight (approx. 40g). It fits standard narrow-neck and wide-neck baby bottles, and can also be used on small plastic bottles. - Size: Outer diameter approx. 8cm, Height approx. 13cm Thank you for viewing.