Canon EOS RP brand_Ilford The Nikon PK-12 is a

The Nikon PK-12 is a 14mm extension tube for manual focus F-mount lenses

Includes one battery and charger

roughly equivalent to a 35-70mm lens on 35mm

It's possible that it's some kind of reference to the internet (the design is very early-2000s) but I don't know what this bag has to do with the internet other than the fact that you're reading this description

Check Nikon's compatibility chart here)

Canon EOS RP brand_Ilford The Nikon PK-12 is aThe Canon EOS RP is a very compact full frame mirrorless camera compatible with Canons RF mount lenses (sold separately). It features a 26mp sensor, tilt flip rear LCD screen, 4k video recording at up to 24fps, and full HD video at up to 60fps. In near new condition, with under 1000 actuations. Includes two Canon batteries, charger, strap, and manual.