These end caps in black vinyl are suited for OpenBeam. These end caps are great to protect your desktop or to prevent your OpenBeam project from slipping away, it also reduces vibrations for your construction and gives your project a nice finish. These end caps were made especially for MakerBeam.eu, they have a square entrance and a round end. They fit tightly around the beams so no glue is needed, just a little pressure and can be easily removed to be used in your next project.