20 Feather Professional Super Razor Blades. This is a blade that has been designed for those of you out there with thick beards. Blade performance is excellent as they provide slightly more aggressiveness to deal with tougher beards. These blades are conveniently wrapped for easy blade installation. Take note that these blades are only compatible with Feather AC straight-style razors.
Injector displacment makes them very simple, fast and safe to change.