Bel-Art Safety-Labeled 4-Color Ethanol Wide-Mouth Wash Bottles; 500ml (16oz), Polyethylene w/Natural Polypropylene Cap (Pack of 4) (F11716-0019) Right-to-know safely-labeled wash bottles feature a 53mm (2") closure for easy refilling; OSHA compliant Preprinted bottles include: chemical name and formula, NFPA diamond, health hazards, CAS # (chemical abstract services), suggested protective clothing and equipment Leak-proof, translucent LDPE bottles Natural color coded polypropylene cap aids in quick and easy identification of Ethanol 500ml (16oz); pack of 4 bottles