Pre-washed Ready for Sterilization (RFS) Clear 10mL Serum Vials, 24x50mm, 20mm crimp finish, 4 bagged reams of 179 pieces each (716 pieces total). USP Type 1 glass manufactured and washed by Gerresheimer, packed in plastic, Tyvek bagged trays ready for sterilization / ready to sterilize. 20mm vial seals and 20mm vial stoppers sold separately. Also available in single reams of 179 pieces.