The new size also provides for a cleaner look, allowing you to see more of your drum finish or mallet instrument. Clean up the look of your rack or front ensemble with the new CH830S! Excellent for rack attachments and added boom arms for smaller cymbals, Pearl's Uni-Lock Short Boom Cymbal Holder matches our 830 Series hardware and features rachetless cymbal angle adjustment. Features Uni-Lock Tilter: The Uni-Lock Tilter delivers smooth, gearless cymbal positioning Hide-Away Boom Arm: Solid steel convertible cymbal arm delivers solid, reliable support in boom or straight position Plastic Wingnut and Cymbal Cup: Durable plastic wingnut provides secure hold of cymbal/felt settings without thread creep or binding. The corresponding cymbal cup gives solid support and protects cymbals from damaging metal contact.  Specifications Tilter: Uni-Lock Titler, Plastic Wingnut and Cup, Felt Cymbal Washers Diameter: 7/8 Diameter Post with Stop Lock