This is a Canon 2x teleconverter, the EF 2x II. - EXTENDER EF 2x II - Canon - Made in Japan - Magnification: 2x I stored it after using it a few times. There are some minor scratches, but it's in good condition. I have confirmed the operation of the EXTENDER EF 2x II with an R6 mark II, an adapter, and an EF 70-200 f2.8 lens. It worked without any problems. The items included are the EXTENDER EF 2x II body (as shown in image 7), two lens caps, and a lens case, for a total of four items. Please understand that this is a used item.