I bought these for my upcoming wedding, and didnt want to risk getting them dirty, so I tried them on, walked a few steps, thought it was wobbly because of carpeting, and put them back in the box. This device works perfectly and is easy to operate. Love love this shoe Also auch hier volle Punktzahl. also I can wear my glasses comfortably with them. The idea is simple. Like description nice product They work perfectly! Aluminum toe cap showing threw on right boot and outer sole came loose from left boot. These slippers are warm & cozy.