The Pearl CH-830S Cymbal Holder with Uni-Lock Tilter for flexible positioning. The main features of the Pearl CH-830S Cymbal Holder include: High quality boom cymbal holder Cymbal Tilter: Uni-Lock with Steel Washer and Wing Nut/Vinyl Tube Felt Diameter: 7/8 inch Post with Stop Lock Attach to your rack system or attach to another stand with a bracket