York Vertical Knee Raise (VKR) W/ DipDescription York Vertical Knee Raise (VKR) W Dip Ultimate Core & Upper Body Trainer The York Vertical Knee Raise (VKR) with Dip is a powerhouse addition to any strength training setup, designed for effective core and upper body workouts. Part of the Strength Training Series (STS), this multi functional unit allows you to sculpt your abs, strengthen your triceps, and build upper body enduranceall in one compact station. Engineered for stability,