Large wide mouth polypropylene bottle with white polypropylene screw closure. Autoclavable, space-saving bottle features convenient, molded-in handgrips. Excellent for storing and sterilizing contaminated slides and other small lab items. Not leakproof. NOTE: Before autoclaving, just set cap or closure on top of the container without engaging the threads. Containers can be used for long-term storage, but direct UV exposure should be avoided.