Designed to fit with any EVERNEW water carry system Bite valve cover keeps it clean at all times Shut off valve keeps the contents from dripping Sterilizable by boiling *except clips Specifications Material : Cap = Polypropylene, Tube = Elastomer, Clip = Polycarbonate Size : Outer tube: 75 cm (29.53 inches) / Inner tube:34 cm (13.39 inches) Country of origin:JAPAN