8 oz black PET straight sided single wall jar with 89-400 neck finish. PET is a great light weight, semi-rigid option for a wide array of products. PET is strong and impact resistant as well as high clarity to showcase and protect your product. Typically used for creams, lotions, hair products, personal care, skin cleansers, gel and others. As always, remember to test your product with this packaging to assure compatibility.