received 2nd time buy.. but the free 10 pcs after 1week cannot use auto turn dark..

The free gift foot pad had moisture seeping in formed dark patches as per photo. The normal 50pcs are OK, work as per description.

Fast delivery. Applied foot patch pads overnight and they turned moist when taken out. Sticker is very sticky and hard to take out. Need to scrub feet to get rid of stickiness. Prefer to use scotchtape to paste patch pads on feet instead. Yet to see results after a few applications.