Leumius Rock Stepper for Exercise,Side-to-Side Stepper Machine with Resistance Bands & Digital Display,Foldable Mini Stepper for Home Workout,Purple

Definitely need to have a chair, counter or wall in front or next to you, to hold onto while getting on/off and until you get used to it, but that doesn't take very long. It's easy enough to change my stance/position to find a position comfortable for my knees.