10.5mm (SC-LBM), Dual L-rod mount accepts following ball L-rods: 9.5mm (SC-LBS), Cast adjustment points with memory locks lock in position, Tom / Cymbal Mount Platform adjusts from 18" to 32" playing height, 12.7mm (SC-LBL), Hex (SC-HBL) ball L-rods and SC-BJEA Ball Extension Arm