Cymbal Boom Clamp 18 in. Model #SPC18 This Cymbal Boom Clamp from Sound Percussion Labs features an 18″ boom arm with ratchet tilter on one end and a grabber clamp on the other. It attaches to any 1/2″ to 1-1/2″-diameter tube. Shop now at the following retailers: PRODUCTS All-In-One SetsShell PacksSnare DrumsMarchingConcertPercussionVelocity Hardware ACCESSORIES Stands & Pedals Drum Practice Pads & Practice Mutes Bass Drum Impact Pads Replacement Parts Cymbal Holders & Arms Percussion Mounts & Stands Clamps Drum Keys Drumsticks SUPPORT Customer SupportFAQsManualsWarrantyPrivacy Policy FollowFollowFollow