Stock up on replacement blades for your Single Blade Safety Razor! This listing is for 10x replacement blades. Under quantity, if you select 1, that = 10 blades, 2 = 20 blades, 3 = 30 blades, etc. The blades are standard size and are interchangeable with any standard razor. Please recycle used blades responsibly. Check with your local pharmacy or sharp object disposal sites in your city.