Allows for the easy modularization of optical systems. [Features]· The smallest breadboard in the product line-up.· Features a modularized Opt Station and 40 mm stage combination etc. Can be fixed to the top of vibration removal boards and breadboards and easily moved and stored.· The top surface is configured of a 25 mm matrix of tapped holes for the M6 type, and 8 mm or 16 mm for the M3 type. All holes are through-holes.· Features M6 bolt holes for fixing to vibration removal boards etc.· Allows for the easy modularization of optical systems configured with Opt Stations and a 40 mm stage, etc.