So far so good for groups. They are more difficult to put on than big brand straps, but once you put them on they work well. I love the variety of colors. Protective films do not correspond to those declared. It's not tempered glass, just thin cheap plastic. I've only worn it for 3 days and it's already full of scratches. I also just touched my verse and the "tread" lifted off completely and crumpled in one corner. I didn't buy these bands because of them but they were an added bonus even though they just suck. They also do not come in a separate box like in the photo.
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