Found one of each, then went and bought some injector blades (always wondered how that system worked...it's very clever).
If you like the frighteningly close shave of a SE razor but have been put off by them (as I have), an injector is worth your time. I still like my DE but both injectors took off more hair on the first pass, going just as lightly as I do with a DE. And no scrapes.
Look around and you'll find one for less than you'll pay for the blades. It's worth it!