This Ruixin SH98/72 replacement shaver head restores full cutting performance to Philips Norelco 9000 Prestige shavers. Built with NanoTech precision blades and a floating triple-head design, it replicates the original SH98 shaving experience?delivering a close, comfortable shave across all facial contours. Technical Performance Each rotary cutter features ultra-fine stainless steel blades reinforced with a NanoTech coating to maintain edge sharpness through hundreds of cycles. The ComfortCut system combines rounded guard profiles and micro-grooved foils to reduce skin drag and irritation. Internal alignment rings ensure full compatibility with SH98-series shavers (SP9811, SP9851, SP9781, SP9880, SP9863, SP9861, SP9860). All assemblies undergo dynamic balance and wear testing to verify rotational stability at full motor speed. Practical Applications Daily shaving: maintains precision and comfort comparable to OEM heads. Sensitive skin users: rounded foils minimize micro-abrasions and friction. Long-term maintenance: easy click-on replacement extends shaver lifespan. Measured Advantages NanoTech edge technology for close, efficient cutting. Floating head assembly adapts to jawline and neck contours. Corrosion-resistant stainless steel components. Simple installation and cleaning with water or brush. Compatible with Philips Norelco SH98 Prestige Series. Design Trade-Off Performance matches OEM precision closely, but initial break-in period (2?3 shaves) may be needed for full smoothness as blades seat and lubricate.