eBay

Screw cap plus writable sealing disk x 6
Fit avent bottles; 100% seal; The whole set (screw ring+sureseal disk) can replace the (screw ring+sealing disk) set used in Avent Natural Bottle.
Re-Writable top for easy labeling; The disk is soft so better sealing is achieved.
NOTE: This product can fit Philips Avent Natural Baby Bottles but it is NOT designed to fit its Nipple.

Screw cap plus writable sealing disk.

NOTE: This product is NOT designed to fit the nipple of Philips Avent Natural Baby Bottle.