Review on Reflective Stickers Visibility Waterproof Adhesive by James Sevenfourgd

I put it on the back of my truck bumper because we park on a pretty dark street and people drive pretty fast. Reflects only when the headlights fall directly on the decals. I washed the bumper with alcohol, dried it and then glued it. The next morning two were on the ground. I taped them with packing tape. They are alright. Maybe they don't stick when it's cold outside, I don't know. Maybe the red is a little lighter than the white. Update: Despite the tape being taped over, they were all gone by the end of the week. The glue fails.