Ramair sock style air filters, which feature two holes cut out of the foam on the underside of the air filter. The two holes are designed, so that you can pull the air filter over the top of the trumpets of the carb or the engines two air intakes. Features High performance twin layer foam. Easy to clean using our filter maintenance kit - CK-003. 100% hand made in the UK - guaranteed against manufacturing defects for life (single user, non-transferable). Long lasting and hard wearing. Unit Quantity: 1 External Length: 177mm Filtration Material: 15mm Dual Layer Foam Internal Structure: No Cage or Stainless Cage Support External Height: 84mm Inlet Hole Spacing: 90mm