18K Gold-Plated Replacement Head 18K Gold-Plated hypo-allergenic heads are suitable for all skins and tones. Since the micro-blade does not touch the skin directly, there is painless, no redness or no irritation. The 360-degree design without any dead ends helps you to have a safe and comfortable hair removal experience. Easy to Clean & Easy to Replace How to replace it? 1. Twist the replacement heads counterclockwise and it just pops off. 2. Put the replacement on, find the corresponding position, and twist clockwise, then push down. 3. For optimal results please replace the Hair Remover Replacement Heads every 3-6 months. Great Value 4 Pieces Set Material: Stainless Steel and 18K gold plating Color: Rose Gold Suitable for Gen 2 hair removal devices, unsuitable for Gen 1 Hair removal devices.