Robust blade: If you shave twice a week, Venus razor blades can last up to a month. You can simply replace them as soon as a new one is needed. DURABLE DESIGN: With a twice-weekly shave, each blade refill can last up to one month. Simply use it and replace it when you're ready for a new one. ERGONOMIC HANDLE: Crafted with a gel that provides a gentle grip for your hands. SOFT SHAVING: Constructed with comfort cushions made of elastomer to protect the blades. has a fadeable blue indicator strip that shows when you're not getting the best shave possible. With the exception of Simply Venus and Venus Pubic Hair Razor, any Venus blade refill fits any Venus razor handle.