Black rubber. OEM style replacement fork gaitors for K and Sportster models . Approx. dimensions: Length 3.6 inch (9.1cm), compressed length 2.4 inch (6.1cm). Bottom 39mm ID, Top 46mm ID. Repl. 46001-54. Note: Installed on pre-70 Sportsters the wide side is top side.54-56 K, KH 57-70 XL models (NU)