Feature: 1. Easy Rotation: Head retaining rings rotation can saves your time and effort, align the bracket and turn it gently with the rotator to fix it. 2. 12 Pieces Set: 9 shaver head holders and 3 holder rotators, which are convenient for you to use and operate, saving your time and effort. 3. Practical Replacement Accessories: Easy to replace with simple how to guide, please make sure well your shaver model, clean shaver before installing. 4. Wide Range Of Applications: Shaver parts is suitable for the following models, suitable for S7000 S8000 S9000 RQ12 shavers heads. 5. High Quality Material: Parts is made of flame retardant nylon material, safer, more durable and fire resistant, it is safe and non toxic for use. Specification: Item Type: Shaver Head Retaining Rings Material: Nylon Compatible Model: for S7000, S8000, S9000, and RQ12 all shavers heads for S7000 Series: S7370 S7310 S7311 S7312 S7326 S7370 S7720 S7300. for S8000 Series: S8860 S8870 S8880 S8980 for S9000 Series: S9031 S9111 S9151 S9152S9181 S9182 S9311 S9511 S9512 S9521 S9522 S9711 S9712 S9721 S9731 S9751S9781 S9800 S9911 S9988 for Series: SW6700 SW7700 SW9700. Package List: 9 x Blade Holders3 x Bracket Rotators