HIGHER QUALITY:Replacement Shaving Head & Cutter Blades with Hypo-Allergenic Foil Head with Bump Prevent Technology, Fit Model: Universal Rotary Shaver Replacement Head Compatible with Remington Shaver series,for R-2, R-3, R-405, R-3130, R-3130NB, R-3150, R-4, R-4100, R-4110, R-4130, R-4130NBG, R-4135, R-4135XLP, R-4150, R-4155, R-5, R-5130, R-5130NB, R-5130XP, R-5150 (R5150), R-5150XLP, R-6, R-6130, R-6130XP, R-6150 (R6150), R-6150XLP, R-7, R-7130, R-7130CDNNB, R-7130NB, R-7150, R-8, & R-8150 (R8150), R-8150H, & R-8150CS. Replaces Remington SP-3141 and SP-5161 Foils Easy to Install: You can replace the shaving heads in a few minutes.place a tiny drop of baby oil on each heads and allow shaver to run for 10 seconds after installation ,to ensure your shaver run properly and smoothly. Warm Tip:To keep Your Shavers Super Performance.We recommend that you replace shaving heads every 3-6 months Universal Rotary Shaver Replacement Head Compatible with Remington Shaver Razor Parts for Series R3,R4,R5,R6,R7,R8,SP-3141 and SP-5161 Foils