I bought these for my husband as part of his Father's Day gift. I used one and showed him how easy it was to tear and we were both shocked at how smooth it was after taking the end off. I expected it to have a sharp ridge but it didn't! So awesome. I heard him bragging to his friends that I actually bought him a useful gift, which is rare, so it's a win for me lol. I'm sure he'll be buying more.