All the new DW cymbal accessories fit the DW 9000 Series Stands as well as any metric threaded cymbal stems. The 904 ($29) four-inch straight, 906 ($29) six-inch straight, the 909 ($89) Angle Adjustable and the 835 ($32) Quick Release are all good additions to your cymbal set. DW also makes the Closed Auxiliary Hi-Hat (C-Hat) Holders like the 9212 ($68) which will replace standard 1/2 inch diameter boom cymbal arms.