One of the highest-rated blades in the world, Kai Double Edge Razor Blades are made in Japan, using high quality, medical grade stainless steel. Made of a thicker gauge steel than other brands, Kai D.E. Blades have a superior cutting edge that shaves comfortably, without being overly aggressive or harsh.More forgiving than some blades, yet still quite sharp, Kai D.E. Blades are best for moderate to experienced wet shavers. Hard to find!50 blades (10 packages with 5 blades each).