PekyBio's high density polyethylene (HDPE) wide narrow mouth bottles are clear and amber, pliable and have excellent strength, including polypropylene caps. They meet the requirements of the most demanding applications in laboratory, such as storing, shipping, and packing samples. Amber bottles reduce UV light transmissions to protect light-sensitive liquids. HDPE bottles provides excellent chemical resistance, linerless caps provide the leakproof protection, and they are designed for easy and comfortable opening and closing. Bottles and caps are packed in separate polybags within the same carton.