I love this mirror and for me the screw clock or anti-clockwise mechanism to attach the suction cup is it's very best feature. I always worry that suction cups will fail and this mechanism alleviates that worry. Move it from place to place, without worry. A great bonus is that you can purchase from Fancii a bending extension arm, so you can get right up close wherever you are. If it's your first time going 10 times magnification, be prepared. You will see things you have never seen before! I use many at home beauty devices and this mirror saves me time because it allows me to target specific wrinkles with unbelievable accuracy. 100% recommend!!