2.3mm Black Hoop - 10 in -6 hlS 2310 6B High quality, 2. 3mm thick heavy duty, drum hoop for tuning down the drum head. Provides consistent shape and tension for a nice clear sound. All DrumMaker hoops are sold as a single hoop, we never force you to purchase a pair. The black finish is a black chrome, gun metal type look. We avoid the powder coat finish on the hoops to prevent possible chipping with extened use. NOTICE: It is very common in our industry for black drum parts to