Vision Vertical Knee Raise 300-VKRVision Fitness 300 VKR Vertical Knee Raise Multi Functional Strength Station The Vision 300 VKR is a durable and versatile station built for core, upper body, and functional training. With commercial grade steel construction, double stitched padding, and non slip grips, this machine is designed to withstand heavy use in home gyms or light commercial settings. Perform vertical knee raises, pull ups, dips, and more with comfort and stability.