This Eisco Labs Double Burette Clamp is a casted design with a built-in boss head. The clamp measures approximately 3.75" tall, 4.5" wide, and 2.75" long. It accommodates two burettes simultaneously on a single retort stand. Double clamps save bench space and allow side-by-side titrations. The built-in boss head connects directly to retort stand rods. Suitable for chemistry classrooms and analytical laboratories.