Replace the foil and cutter: Replace the 17150 lithium foil shaver, when the foil and cutter get dull, you can replace them to keep the in excellent cutting shape. suitable for : 17155 #17150 #17200 Zero finish: Gold titanium foil for zero finish, ultra-thin, suitable for the most sensitive skin without pain or irritation. No bumps: Diamond treatment enables dry trimming, zero overlap and ultra-tight, clean shaving without bumps or irritation. Easy Replacement: You just need to follow the instructions to change the foil and knives, which is very convenient and easy. Replacement cutters and foil fit for models: 17155 #(Pro) 17150 #(Pro) 17200#(Pro) Colour:A: gold Material:Stainless steel+ABS Package Contents: 1 x Replacement Shaver Head 2 x Blade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.