I didn't see anyone mention it, but you want to go with the standard hd not the slant bar.
The Parker 60R, 90R, (and 96R) are essentially the same razor, with different handle designs. They all use a "twist-to-open" head (like the old Gillettes), about 4 inches long and weigh about 2oz. Unfortunately, the only importer is a guy on eBay, but that also means you can get a really good deal on one if you bide your time and get in a minimal bid. I had to try three times before I got one for a price I could live with.randomtw said:whats the difference between merkur hd, parker 60r or 90r?