Bel-Art Safety-Labeled 2-Color LYOB Wide-Mouth Wash Bottles; 500ml (16oz), Polyethylene w/Natural Polypropylene Cap (Pack of 6) (F11646-0638) Wide-mouth wash bottle used to wash labware and to store washing solutions, such as acetone or deionized water LDPE body for flexibility, elasticity, and impact, stress-cracking, and moisture resistance, and is lightweight Round shape used for a wide variety of common applications that require fluid containment Colored polypropylene screw closure with its angled stem and draw tube molded in one piece for leak-proof applications Hazardous communication label allows for content identification and safety information