Sensei PRO 55-67mm Aluminum Step-Up Ring Go Green GG-5OCT 12 Outlets / USB Port

12 Outlets / USB Port / RJ11 Protection

board size 71 (mm) * 99 (mm)

A battery case is supplied along with the AAs

The above mentioned limits are for horizontal mounting with ventilation

Magnification 3x Objective Lens 25mm Focus Type Focus-free Angle of View 11

Sensei PRO 55-67mm Aluminum Step-Up Ring Go Green GG-5OCT 12 Outlets / USB PortUse 67mm Filters on 55mm Lens Knurled Sides for Firmer Grip Matte Black Finish Minimizes Reflections Corrosion Resistant Hard Anodized Finish The Sensei PRO 55 67mm Aluminum Step Up Ring permits the use of 67mm threaded filters on lenses with 55mm filter threads. It has large side knurls to provide a more textured grip when mounting or removing it from a lens. This step up ring features a lightweight, aluminum alloy construction that has a corrosion