Cardboard Box -

A single wavy layer used for most shipping.

The secret to a cardboard box's durability lies in its —the wavy inner layer sandwiched between two flat liners. This arch-based geometry acts like architectural columns, providing high compression strength and shock absorption during transit. Cardboard Box

A single, thin sheet without fluting, typically used for retail items like cereal boxes or playing cards . A Circular Success Story A single wavy layer used for most shipping