These blades were purchased off Amazon…didn’t fit my handle …so not compatible…need to have A’s handle. The product is a set of 5 blade razors made of stainless steel, specifically designed for men's facial shaving. This set includes 4 refill cartridges, each containing 5 blades. The razors are ideal for achieving a close and comfortable shave, making them a must-have for any man's grooming routine.