Ludwig L1372 Bass Drum Cymbal Arm w Mount BracketIt"s 9.5mm arm to match the older kits. The Ludwig L1372 Shell Mounted Cymbal Holder mounts right to the shell of the drum. It eliminates a cymbal stand plus it can bring a cymbal closer to the player. The mount must be drilled into the bass drum. Made famous by John Bonham of Led Zeppelin!!! 4.5" Arm, 11.5" - 20" Adjustable Stem All of our items are sold as-is so ask questions. Please check our online store for our other inventory. Now featuring our new line of LUDWIG DRUMS, TAYE DRUMS, DREAM CYMBALS, GRETSCH DRUMS, GIBRALTAR HARDWARE AND RACKS, SABIAN CYMBALS, TOCA, LP, CYMPAD and KICK PORT ADVANTAGE BASS DRUM FATTENERS all of which we are happy to welcome to the Philly Drums family.