Packaging practice 2 blocks of 4 heads each consisting of 5 blades. Simply put, the head is effective in powering or not the razor. It is soft, hard still 2 times longer than a conventional disposable razor to 3 or 4 blades. Easily washable. By powering the shaver head is more effective as a mower for a reasonable beard anyway. These blades are mounted on razor equipped or NO to Flexball. I take off a star for the price excessive hair.