Haida Anti-fog Belt - blak/red

Specially designed for camera lenses and telescopes (110mm lenses and less)
Prevents condensation by warming up the lens on a camera or telescope
Rapid heat with high-tech Graphene material
Fits outside diameters less than 4.3" (110mm)
Three power settings: Low (35-45° C), Medium (45-55° C), and High (55-65° C)
Runs on external USB power
Hook-and-loop fastener makes it fast and easy to attach and remove