Review on 🏌️ EyeLine Golf Putting Alignment Mirror, Portable Putting Trainer, 12 x 6-inch Mirror Size, Seen on PGA Tour, Made in USA. Ideal for Outdoor Use or Indoors on Putting Mats [SEO: Putting Alignment Mirror for Golf Practice, Portable Putting Trainer, 12x6 inches, PGA Tour-featured, USA-made, Suitable for Outdoor/Indoor Use] by Kenneth Murphy

I have bought this item twice and returned it twice. The large version has the same flaw as the small version: the red line that you use to line up the club to make the putter straight is broken. In the reduced version, even the photo of the packaging differs from the real one. The big version is too big, but it's still very hard to see your shoulders in the mirror. The back isn't sticky or gummy either; You can't use it indoors unless on carpet. Not recommended