This profile has two openings for a fastener or accessory and two smooth sides. Best suited when a clean look is needed on a corner. These versatile extrusions can be used for all kinds of structures. With their 40 mm base, they complement extrusions with 20, 30 and 50 mm bases perfectly. The base extrusion itself is extraordinarily sturdy and is hard to beat in terms of value for money. Suitable for bases, frames, enclosures, guarding and general-purpose applications. Partially closed extrusions are particularly attractive in design, trap less dirt and can be used for a wide range of applications.