Built for a 7/8" base with a 12mm L-rod.
The first Pearl L-Rod Tom Arm Holder with an original omni-directional gearless positioning system, GyroLockL is the world's most adjustable arm. Its solid universal 12mm L-arm offers secure placement from a singular drum key lock at four independent orientation points (Up/Down, Left/Right, Side/Side, Forward/Aft.) Backed-up with a moveable memory clamp for flawless angle security, GyroLock-L's outer Compass Dial is also fitted with setting marks for visual placing reference. Free from cumbersome nylon balls or sleeves that get stuck or wear out over time, the GyroLock-L's interlocking cylindrical movement is smooth and secure in any position for the long haul. Rock solid and totally flexible, the GyroLock-L assures painless tear-down and reset every time.