A Freund Exclusive! The PETG plastic composition of this container makes it crystal clear and excellent for product presentation. The square shape of these containers help save space on the shelf. The wide neck opening allows for easy filling, dispensing, and cleaning. Applications include: packaging, dispensing, sending samples, storage, and mailing. Containers include leakproof black polypropylene (PP) cap with PE-foam insert. To ensure leakproof performance, use only the cap included.