1. Compatible with Braun Series 5 Razors: The 52S replacement head is designed for Braun Series 5 razors, including models such as 5190cc, 5090, 5090cc, 5197cc, 5195cc, 5147s, 5145s, 5070, 5070cc, 5050cc, 5040, 5000cc, 5040, 5000cc 40s, 5140s, 5030, 5030s, 5020, and 5020s. 2. Material: The stainless steel mesh conforms to your skin, providing a smooth and irritation-free shaving experience. Rigorous quality control ensures durability and reliability. 3. Blade Technology: The Series 5 replacement head features three floating blades, precision comb technology, and a mesh design for a smoother, more comfortable shave. The adaptive blades glide over the skin, removing hair effectively, while the rounded head design helps prevent nicks and cuts. 4. Easy Installation: Replace your shaving head in just 3 seconds with a simple click. Once installed, your razor performs like new, restoring 100% of its efficiency.