Sharp spike vented (for bottles & bags) and non-vented (for plastic bottles) for better penetration. Conforms to International Standards. Special beveled extra strong spike. Flexible drip chamber facilitate rapid adjustment of fluid. Disc filter in chamber ensures filtration of administered fluid. Highly kink resistant tubing. Roller clamp for flow control. Self sealing latex tube for extra medication & easy flushing. Needle 21G for smooth flow Drop size of 20 drops/mi., Individually packed. For single use only Disposable non toxic & pyrogen free Sterile ready for use