These Polypropylene Wide Mouth Jars are especially perfect to contain bigger items. Available in white color, an easy background color under the label you are to put on the packaging, the jars are made of FDA compliant plastic resin – Polypropylene. They are totally safe to store food products and durable (though more breakable compared to HDPE). The jars also have wide chemical resistance, which makes it convenient for the safety of the stored items. Most recycling companies accept containers made of white polypropylene (and these jars are white!) so don’t be worried that you might be contributing into the destruction of the nature by using unrecyclable plastic; because you won’t with the PP jars.