The item arrived when expected and appears to be of good quality. I recommend this seller.

The C2 is not mentioned on the page and is not shown in the picture. It has 6 female and 6 male parts that can be flipped (24-26 / 28-30 / 31-32 / 33-34 / 36-38 / 40-42). It does not have the special marking (circle with hollow sways side handles). It features a smooth, nickel-plated lever.

That's fine.

Seems to be of good quality considering how much it costs.