Sensei 30-37mm Step-Up Ring Phone to Phone (1/4") Cables The 25mm objective lenses are

The 25mm objective lenses are fully multicoated to reduce reflection and maximize light transmission to produce the brightest images possible

a small board with a built in USB to serial UART interface

55 V Packaging Info Package Weight 0

Adds a standard USB port to your micro USB OTG capable tablet computer or smartphone Connects a USB keyboard or mouse to your tablet Connects a thumb drive to your tablet

Sensei 30-37mm Step-Up Ring Phone to Phone (1/4") Cables The 25mm objective lenses areUse 37mm Filters on 30mm Lens Corrosion Resistant Anodized Aluminum The Sensei 30 37mm Step Up Ring permits the use of 37mm threaded filters on lenses with 30mm filter threads. It features a lightweight, aluminum alloy construction that has a corrosion resistant, black anodized finish for durability. UPC: 847628537699 Size 30 37 mm Thickness 3 mm Material Aluminum alloy Knurling None Packaging Info Package Weight 0. 05 lb Box Dimensions (LxWxH) 1. 5 x