It is designed for the secure storage of photosensitive materials in laboratory environments. Constructed from high-density polyethylene (PE), this bottle is completely opaque, providing excellent protection against light exposure for both liquid and solid contents. It features a leakproof design with sloping shoulders to minimize residue deposits and comes equipped with a polypropylene (PP) screw closure that includes tag holes for added security. The bottle also has shoulder holes for attaching security seals, ensuring the integrity of the stored materials.