FEATHER® has set the standard in manufacturing the sharpest and safest razor cutting blades in the industry. The cutting edge of the FEATHER® blade is designed to give you the cutting control you need to be creative. The blade fits snug into the handle and does not chatter or move when cutting. The blade itself is sharp, but with the patented blade guard, it makes it safe for you and your client...meaning you won't cut yourself with this blade! The design also prevents hair from clogging between the guard and blade. Each Standard Blade Pack contains 10 blades. For Professional Use.