Compatible with Remington Balder Pro Hair Shaver (XR7000/XR1500/XR1501),* Not compatible with XR1600/RX7/ BOSS XR7120 and XR7100 shavers Special electroplate surfaces for anti-abrasion, double-ring hypoallergenic stainless blades and a powerful motor，offering closer and cleaner trimming without skin irritation 5 Dual Track Shaver Heads,Shaven Head In Under 2 Minutes,Multidirectional Pivot, Flex, & Contour ,Make the blades Maximum Skin Contact Keep your razor performing super well. It is recommended to replace the shaving heads every twelve months,Thank you for purchasing our products，Have a nice life Compatible with Remington Balder Pro Hair Shaver (XR7000/XR1500/XR1501),* Not compatible with XR1600/RX7/ BOSS XR7120 and XR7100 shavers