Sensei PRO 40.5-52mm Aluminum Step-Up Ring Projector & Presentation Lamps Non-Slip Rubberized Grip

Non-Slip Rubberized Grip

Celestron 5MP Digital Microscope Imager

The mounting plate can stay permanently attached to the camera to avoid taking the time to screw the camera onto the ball or screwing the ball onto the camera

the PVC cards are 30 mil thick and CR-80 size for use in most card printers

76GB 16X DataLifePlus White Inkjet Printable Spindle (Pack of 50)

Sensei PRO 40.5-52mm Aluminum Step-Up Ring Projector & Presentation Lamps Non-Slip Rubberized GripUse 52mm Filters on 40. 5mm Lens Knurled Sides for Firmer Grip Matte Black Finish Minimizes Reflections Corrosion Resistant Hard Anodized Finish The Sensei PRO 40. 5 52mm Aluminum Step Up Ring permits the use of 52mm threaded filters on lenses with 40. 5mm 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