I bought this one here, the information is that it was bought 20 years ago, and it has some imperfections as you can see, but it is completely usable, I used it and it does not seem to have any defects, however it was very small and uncomfortable for me, I wear a 39
I bought this one here, the information is that it was bought 20 years ago, and it has some imperfections as you can see, but it is completely usable, I used it and it does not seem to have any defects, however it was very small and uncomfortable for me, I wear a 39