Wheaton® Plastic Straight Side Jars, 250mL (8oz) , Polypropylene (PP) , 89-400 Finish, W/ Linerless Cap. Wide mouth design is ideal for large solid samples Polypropylene container safer to use than glass jars Durable container with good chemical resistance White polypropylene screw cap pre-attached to maintain cleanliness Polypropylene container with Linerless cap is autoclavable or sterilized using ethylene oxide