Ramair sock style filters which feature one hole cut out of the foam are designed to pull over the trumpets of the carb or the engines air intakes. The complete set up with cable ties for the extra security. 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 Filtration Material External Height Internal Structure Internal Hole Diameter            6    15mm Dual     Layer Foam 160mm No Cage 90mm