Ugg W carter boots with cleaning kit

Cleaning out my closet, worn these pair few times, there is a black mark on the left side of the boots (shown on pictures). Can be cleaned with the kit I am sending together with these boots, its a complete cleaning kit for all your Uggs. Soft sheepskin details, The cozy lining is made from genuine shearling with a plush UGGpure™ footbed to keep feet warm and comfortable. UGGpure™ is a moisture-wicking textile made entirely from wool but crafted to feel and wear like genuine shearling.