It is available in various sizes for a comfortable

46mm L x 40mm W x 29mm H

machine washable navy polyester/cotton cover

The whistle tip can be cleared (irrigated) easily because it is approximately the same diameter as the drainage lumen

as well as from blood splattering upon opening the tube

Medela® Pump in Style Advanced Double Pumping Kit HME Filters It is available in variousMedela Pump In Style Advanced Double Pumping Kit, Made without BPA, Great as a Spare Set or to Replace your Worn or Damaged Kit Includes 24mm PersonalFit breast shields and connectors. Refresh your pump with In Style advanced Breast Pump and always have parts on hand. Keeps the kit clean and organized. Safe for you and your baby.