Dark Tranquillity plectrum

I picked up this plectrum Johan Reinholdz threw into the audience after Dark Tranquillity was done playing their show at Baroeg Open Air. I just found it on the floor and haven't used it myself.
It's literally not bendable at all and it's the thickest pick I've ever had in my hands.
Dark Tranquillity was nice to see live, despite them starting like five minutes too late. They seemed to have a lot of fun as well!