Reservoir Sock - Honda HRC - Set -1x Large & 1x Small - Black Keep dust, sunlight & debry out and fluids from leaking out of reservoir Large fits most diameters approximately 50mm - 90mm diameter (2 in - 3 1/2 in) (larger Reservoirs) Two socks included: One Small and One Large Small- fits most diameters approximately 35mm -75mm (1 3/8 in - 3 in) (smaller Reservoirs) Ships from Kansas City, MO