OVJ Cardboard Tube Square 3mm x 5cm x 5cm x 1m

The OVJ Cardboard Tube Square is a rigid hollow profile designed for structural builds, display frameworks, and large-format craft applications. Constructed from layered cardboard with a consistent wall thickness of 3mm, it offers a balanced combination of strength and lightweight handling, making it suitable for prototyping, model construction, and workshop use. The square cross-section provides stable alignment and clean edges, which is especially useful when assembling geometric forms or modular structures.

With an external width and length of 5cm and a full 1 metre length, this tube supports longer spans without frequent joins, allowing for cleaner builds and more efficient material usage. Its surface accepts paint, adhesives, and cutting tools easily, making it adaptable for a wide range of creative and educational environments, including makerspaces, classrooms, and installation work.