The ultimate protection of the fork against dirt, mud, sand, etc.
The advantages of the wipers (Mud Scraper) are obvious:
Less wear on the fork seals
5.1 ) 2x Bushings above (coating outside) - 2x Guide Bushes, upper ones, coating outside = Version: above (outside) / above (outside) 5.2 ) 2x Bushings below (Coating inside) - 2x Slide Bushes, lower ones, coating inside = Version: down (in) / below (inside)