I bought these as a gimmick more than anything else but after losing all my plectrums I began to use them. The more I used them, the more I realised how good they actually are. With plectrums made of similar material, I've found they always break too easily as I have quite a hard playing style but I've been using these solidly for the last year or so and none have cracked or even worn away yet so a massive thumbs up from me. They are suited to players who play in a style similar to mine, with hard downstrokes and upstrokes and even for just picking individual strings too. I don't feel comfortable using other plectrums anymore as these just work perfectly for me.