Technical Specification Conforms to International Standards Clear, Transparent & Flexible Chamber Special beveled extra strong spike Self sealing latex tube for extra medication & easy flushing. Highly kink resistant tubing. Roller clamp for flow controller.; Needle 21G x 1½ ” for smooth flow Drop size of 20 drops/ml. Individually packed. For single use only Disposable non toxic & pyrogen free Sterile Ready for use.