3PCS Orange Blade Retaining Rings for Series 7000 9000 RQ12 Features: Compatible with S9711 S9721 S9111 S9 S9911 S9731 S9152 S9712 S9321 S9 S9531 S9031 S9521 S9522 S9000 S9531 S7370 S7000 andRQ12 series. Quick and easy to install, no instruments required. Made of fantastic ABS material, durable and to use. Portable and useful to use. Perfect replacement for the original one. Specification: Material: ABS Color: Orange Package List: three x Blade Retaining