Product listings show Spectra wide‑neck bottles in sizes including 8 fl oz (US) and a 5 US fl oz (160 ml) bottle. Available sizes vary between those capacities.
Wide‑neck bottles are typically sold with a screw cap, a sealing disc, and a protective lid; multi‑bottle sets list those parts for each bottle.
Search results show both single‑bottle and multi‑bottle packs, with package quantities commonly listed as 1 or 2 bottles.
The cooler kit contains an insulated pink cooler, a reusable freezer pack, and two wide‑neck storage bottles each with caps, sealing discs, and lids.
One product description recommends replacing pump parts every 3–4 months for best performance.
Spectra bottles use a wide‑neck/wide‑opening design, which the listings note allows easier and more effective hand‑washing.
