The LBTEK MT Series Cube Beamsplitter Mount is designed to mount 10.0 mm, 12.7 mm, 20.0 mm, and 25.4 mm beamsplitter cubes onto 0.5-inch or 1.0-inch optical mounts. It allows the transmitted beam to pass through the clear aperture of the mount, enabling pitch and yaw adjustments for the beamsplitter cube. Featuring four-sided light transmission and a large clear aperture, this holder secures the beamsplitter cube via a rubber-tipped set screw on the top. The holder head can be directly mounted into optical component mounts with flexible spring pieces or set screw, offering simple and convenient.