Philips SH50/50 Shaving Heads Shaver Series 5000 Replacement, 3 Heads per Pack 8710103736691 | eBay
Amazon.com: Philips Norelco Genuine SH50/52 Shaving Heads Compatible with Norelco Shaver Series 5000 Rounded and 6000, Latest Version for Refreshed HQ9/50, HQ56/50, and RQ11/50 : Beauty & Personal Care