The ARRI LMB-25 is a clamp-on matte box that expands the feature set and creative possibilities of the LMB-15, while retaining the low price tag of an entry-level LMB-5. 
 
Main Features

• 2- or 3-filter metal filter stage guide
• Combo 4x4 / 4x5.65" filter frames
• Compatible with all LMB-5/15 filter frames, Clamp Adapters and light shields
• Wide angle hood easily removable on set with captive screws
• Securing loop on main frame for crane and vehicle use