- Upgrade your shaving experience with this replacement shaving head set designed for the 5 Series models, ensuring you always achieve the best results. - Compatible with models 30B, 31B, 31S, 51B, and 51S, this versatile replacement set is tailored to enhance the performance of your shaver. - The precision-engineered shaving heads provide a close, comfortable shave, minimizing irritation and ensuring an efficient grooming session. - Constructed from high-quality materials for durability, this set guarantees reliable performance and helps maintain the longevity of your razor. - Ideal for daily use, this replacement set is perfect for busy professionals seeking a quick and smooth shave before work, or for those who prioritize grooming in their self-care routine. - Make the switch to a new shaving head easily; simply detach the old head and snap on the new one, allowing for effortless maintenance. - Whether you are getting ready for a formal event or simply keeping up with your daily grooming, this shaving head set ensures you look sharp and feel your best.