I bought these after seeing a friend play with them on a calabash, which is a type of gourd. I purchased two of them and they really add another level of depth to my percussion playing. They have a good high and tight sound, and only one active striking surface so when you're playing wearing them, they have a very nice rhythmic capacity. They can really accompany any kind of percussion, I use them with my African ashiko drum, my handpan, and I have even tried them on my guitar, which seems to be kind of difficult but an interesting expirement. They have held up well, seem to be well made, and are affordable and small so they fit in a side pouch or pocket easily.