4 Pairs of DiscoB Hayes HFX Nine Disc Brake Pads HFXMag HMX MX1 Hayes9 H HFX9 9 Brand: DiscoBrakes Semi-metallic Medium Density Pads including Spring(s) 4 Pairs of Disc Brake Pads (8 pads + 4 springs) Semi-Metallic compound suitable for all weather conditions