It's a Drum Buddy that you can clamp to the rim of one of your drums. Say hello to the Rim Buddy!
Like the other Drum Buddies the Rim Buddy has a place for your drink (up to 3.75" diameter so the large Nalgene bottles and anything smaller will fit), your phone (with a hole in the bottom for the charger cable), 4 sticks that are angled towards you, a drum key, a Sharpie and a handy spot for your wallet, keys, glasses etc.
