Yongnuo YN560 III brand_Horseman You rotate the wheel to

You rotate the wheel to slide a new filter effect over the end of the lens

The Canon 24-70mm f/4L IS USM is a high quality full-frame lens with a versatile focal length range from wide angle to short telephoto—plus a constant f/4 aperture and an image stabilizer

but everything else is nice and smooth

with only very minimal signs of use

Yongnuo YN560 III brand_Horseman You rotate the wheel toThe Yongnuo YN 560 III looks like a Canon 580EXII, but it's not: it's a simple, single pin, non TTL flash suitable for on or off camera use with a PC sync cable or radio system (transmitter is sold separately). The head tilts and swivels, and zooms from 24 105mm coverage. In very good condition, with minor cosmetic wear. Compatible with any camera that has a hot shoe, film or digital. Includes box, case, and stand.