Silicone - very comfy! Comes with smaller attachments and larger ones, to find a good fit for your watch face. Watch NOT included. “Roll for your life/ Dice don’t die” printed on the inside- wear your fandom/ Eddie Munson reminder to be brave :) There’s a QR code for free (only free with this watch band) stranger things watch faces, you download the moby face app and scan the QR code in the app. If you just scan it, it won’t work- it needs to happen with the app. I have so many of these watch bands, so I’m releasing the ones I haven’t worn!