Style: 6pcs of self-venting economy Wash Bottles, Vol.500ml (17oz) Performance: Designed to dispense uniformly through the top with a closure and stem molded in one piece for leak-proof. Characteristics: The bottle mouth adopts screw design so that has good tightness, the tip can be cut back to provide increased flow. Tight fit of draw tube and closure prevents separation when squeezing bottle. Application: Widely used in the dosing and flushing operations of organic solvents in the laboratory. After-Sales Service LABINVO is development, production, processing, sales, service in one of the integrated enterprises. Our company has advanced production equipment, perfect product inspection standard and quality assurance system. If you are caught in some problems when using our products, welcome to contact us at any time. And we will provide solutions for you until you are satisfied.