The CRB4S is ideal as a single serve bag/sachet for medications, supplements, vitamins, and other items that should be kept away from children. CRB4S comes in brushed silver and has outer dimensions of 1 1/2" x 4". Built-in security such as no tear notches and 5 mm side seals create the desired tamper-resistant bag to deter children from investigating contents. A high metallized barrier controls odors and restricts the transmission of moisture. This smell proof bag can be hand sealed to provide optimal safety. The opaque metallized material ensures the inside contents are concealed from view.