The Arnstein Hauptwand is a renowned climbing area, and tackling "Kleinigkeiten" (Little Things), graded 7+ on the UIAA scale (equivalent to approximately 5.12a/b in Yosemite Decimal System or 7a in French grading), is a significant challenge. This route, located on the prominent main wall, likely demands a combination of technical climbing skills, finger strength, and precise footwork. Expect intricate sequences on small holds (hence the name, "Kleinigkeiten"), demanding attention to detail and thoughtful movement. Successfully sending "Kleinigkeiten" is a testament to a climber's ability to master demanding rock and navigate the challenges Arnstein Hauptwand presents. Prepare for a demanding and rewarding experience on this iconic route. Research the route thoroughly, check current conditions, and be sure to have a competent partner. The rock quality in Arnstein can vary, so always climb with awareness and caution.