MakerBeam 300mm beam black anodised (pack of 4) Pack of 4 aluminum (v2.0 6063-T5) black anodized beams measuring 10x10x300mm width, height, and length (0.394x0.394x11.811") Low weight structure and high loading capacity (weight of 300mm beam: 1.4 ounces) MakerBeam enables professional prototyping and provides mechanics for any electronics project All MakerBeam elements can be combined and reused (no welding required) enabling shorter design and assembly times There are no fixed positions for mounting giving you the freedom to build your own design easily