This cardboard cushioning sheet can be used in place of things like bubble wrap or packing paper.
The cardboard sheets have rows of hexagons separated by perforated edges and creases, which allows them to create angular polyhedral faces naturally when wrapped around a product, increasing the cushioning effect. They can be transformed into cylindrical or arc shapes by hand as desired, allowing them to be used for a range of purposes.

This limited-edition cardboard case is for packaging yarn from knitted doll kits.
The case can be used to display the completed pieces, allowing it to be enjoyed as a knitted doll closet. It has been designed to be both strong enough to stand up to years of use, and light enough to be easy to carry.

This cardboard case for online sales of drip coffee combines the four features of durability, lightness, vivid printing quality, and ease of use.
Using cardboard helps prevent damage during shipping and improves recyclability, and the structure allows it to be easily resealed by just pushing the lid in with a finger, making it easier to use. In addition, limiting the carton design to one style eliminates the waste of multiple carton management and contributes to preventing setup mistakes.

These bottle-shaped pen cases and cardboard vending machine were developed in conjunction with a project aimed at increasing awareness of "Juice" gel ink ballpoint pens.
Targeted at students and young adult women, we have created cardboard vending machines that allow customers to experience creating their own unique bottles in shops. These were popularized on social media, which helped bring in more customers.

The L-Shaped Lock Tray that Rengo developed has been refined into a new shape that reduces its use of resources even further.
The addition of ultra-thin fins on the four corners inside the tray has made it structurally stronger, and the fins automatically fold when the tray is assembled, unaffecting labor manhours.