The listings show two capacities: 5 fl oz and 8 fl oz (US).
Recommended care includes washing with soap and water (use a bottle brush for thorough cleaning), boiling or steam-sterilizing to sanitize, and using the dishwasher top rack for many items when the manufacturer indicates it’s safe.
Package quantities shown in the details are 6 and 3 for the listed standard-neck bottle options.
The collection bottles include enhanced silicone sealing discs described as reducing spills. A customer review also notes good sealing performance with no spillage.
Nipple details in the listings include a slow-flow option. One listing specifies a Level 1 (slow) flow and also notes the presence of a nipple vent.
The classic glass bottle is designed with three pieces for easy assembly and disassembly. Cleaning options listed include washing with soap and water (use a brush for thorough cleaning), boiling or steam sterilizing, and using the dishwasher top rack when indicated.