【Model】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/blades 【Material】: 360 Degrees without Dead Ends .Round head design perfectly protect your skin from scratching You can enjoy a safe and smooth shaving without scratching. 【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 6 months 【Material】: 360 Degrees without Dead Ends .Round head design perfectly protect your skin from scratching You can enjoy a safe and smooth shaving without scratching.