InSight is an award-winning packaging system that combines printed plastic sleeves and injection molded plastic end caps to produce a very distinctive visual package. It has a patented locking feature where die-cut tabs on the sleeves engage undercuts molded into the end caps to join the components securely together. End caps can be designed to lock permanently to the sleeves or to twist-off easily.
Insight packages are essentially tubes where the end cap shape determines the cross-sectional profile of the package. Although "cat's eye" is the most common, InSight packages can be designed in a near endless variety of profiles, including oval, round, rectangle, square, and trapezoid.
US Patent Numbers: 7,000,775; 7,644,823; 7,374,048