4 Pairs Avid Elixir Kevlar Disc Brake Pads DiscoB 1 3 5 7 9 R CR X0 XX World Cup Brand: DiscoBrakes Contains Kevlar brand fiber developed by DuPont Compatible with Avid 4 Pairs of Disc Brake Pads (8 pads + 4 springs in total) Improved strength and performance with Kevlar in medium density pads