Very cute pair of leg exercise stepper. Compact design. Feel good on feet. The spring offers smooth resistance or up-push during stepping. It provides easy to moderate level of exercise. I’d say more easy for the young, and moderate for the weak. Great for people indoor or desk bound. Tried it out today. Very satisfied. One of the two ordered has a tiny little needle missing, but doesn’t affect its function. Overall, very cute, easy to use, five stars.South West, customer review from Amazon.