These are extremely versatile. I love them.

I absolutely love my Black Mountain thumb picks! They stay on my thumb, when I’m strumming as well as when I’m finger picking! I needed a thumb pick that would stay on, even without using my index finger for support. Thank you!

Easy on easy off. Like the fact that the back part doesn't get caught on strings when playing.

Love these!!!! Ordered more!!!

Used one for the first time at church. This pick definitely solves the problem of being able to seamlessly switch back and forth between fingerpicking and flatpicking. Or the awkwardness of using a flatpick between the thumb and forefinger and then using the middle and ring finger (and even pinky). Although I did get rather adept at the latter of the years out of necessity. Now, i don't have to. Have the best of both worlds. I'm sure I'll be using these exclusively from here on for most playing sessions.