These parts are after-market parts made by Maymom,
CONTENTS: 4x Bottle Dome Cap, 4x Bottle Top, 4x Rewritable Sealing Disk; ONLY compatible with Lansino Wide-Mouth bottles, Pigeon Wide-Mouth bottles, Lansino Momma breastfeeding bottles.
COMPATIBLE AND INTERCHANGEABLE with Lansino nipple, Lansino bottle cap, Lansino bottle top, Lansino bottle lid, Lansino collar, Lansino sealing disk. Not Original Lansino pump parts of Lansino Signature Pro Breastpump /Smartpump/ Manual Breastpump.
100% LEAK PROOF as the sealing disk soft enough to achieve better sealing. Re-writable sealing top also features easy labeling date or name in daycare center; write with a regular ball pen, clean with soapy water and rinse.
CLEANING: No problem in dishwasher toprack and steamer.
BPA, DEHP FREE ; US FDA registered medical device (No. D192499); Products are inspected by US FDA. Complies with US FDA and EU standards for containers that contact food.