Philips Avent Anti-Colic Bottle with AirFree Vent, 4oz, with Flow 1 Nipples, 0m+, 4pk, Clear, SCY701/04

what level nipple comes with this set?

What kind of nipple do these 9oz bottles come with? scy761/04 (0+ months), scy762/04 (1+ mos), scy763/04 (3+mos) or scy764/04 (6+mos)? thanks.

Do these fit mam brand nipples? my baby only likes mam’s oval style nipple vs. the round ones in philip’s, but i want to try these bottles.

Where do they sell the Air vent replacements?