Ramair sock style air filters, which feature one hole cut out of the foam on the underside of the air filter. The hole is designed so that you can pull the air filter over the top of the trumpets of the carburettor or the engine’s air intakes – whichever is necessary. They are then secured with cable ties if needed which are included in this sale. They are constructed completely of foam which enables them to locate in the most difficult of areas and gives the most air flow. Supplied with cable ties for easy fitment. Features High performance twin layer foam Easy to clean using hot soapy water 100% hand made in the UK – guaranteed against manufacturing defects for life (single user, non-transferable) Long lasting and hard wearing Unit Quantity No Of Inlets Internal Hole Diameter Inlet Hole Spacing External Height  External Width  External Length Filtration Material Internal Structure            2         Twin 47mm 107mm 75mm 90mm 177mm 15mm Dual Layer Foam N/A