If you enjoy injector razors, you owe it to yourself to try a Schick Adjustable. If you're interested in trying out an injector, an Adjustable is a good place to start, as you can dial in the level of aggressiveness to your liking. And if you're a head shaver, I've heard several folks say it's one of the best razors for shaving the ol' noggin.
This Schick Adjustable is used but really in good shape. And if you need blades to go with it, get 'em right here.