Fits on Models: Blades, R2 N Ultra, R2 Old Style, R2 Ultra B SL- 245xxxxx03, R2 Ultra B SL- 247xxxxx03, R2 Ultra B SL- R2Uxxxxx Also OR 231xxxxx03, R2B, R2B Old Style, R2B SL- 246xxxxx03, R2B SL- R2xxxxx Also OR -230xxxxx03, R2B SL-244xxxxx03 and up, R2BCLR SL- 244xxxxx03 and up, R2N, R2N CLR, R2N Ultra, R2N US