Part of Pearl's 1030 Series hardware line for tour-grade strength and guaranteed reliability, the THL1030 Tom Holder features a Gyro-Lock tilter for gearless multi-axis adjustment. Its solid universal 12.7mm L-arm offers secure vertical 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. The GyroLock-L assures painless tear-down and reset every time. Tilter Gyro-lock tilter Diameter 12.7mm solid l-arm securely fits most professional tom brackets Adjustment compass dial setting The World's Most Adjustable L-Arm: The first L-Rod holder with Pearl's original omni-directional gearless positioning system, GyroLock-L delivers infinite angle positioning at four unique points of adjustment for toms and other drums. Any Angle with a Single Key: Lock in any angle with a single turn of one drum key bolt or solid positioning and rock solid stability in extreme play Totally Secure Position Settings: GyroLock-L's universally accepted 12.7mm L-arm offers solid performance without the long-term deterioration that besets standard nylon ball-in-socket holder systems. Memory locks in three separate places save settings for quick set-up and tear-down Compass Dial Setting Marks: GyroLock-L's included Compass Dial marks give you visual reference points for setting repeatability.