Including 2 sets of 70mm front and rear V brake pads with hex nuts and shims and 1 hex wrench for installation. Brake locking pads are made of high quality, durable native rubber and quiet. V-grooved brake pad design prevents damage from sand, mud and stone to the rims, greatly increases the stopping power of the brake pads. Each pair of left and one right V brake pad, please recognize the mark before installation. Universal replacement for cantilever brake pads of mountain bikes, road bikes, MTB, BMX, etc.