Gibraltar SC-DPLRA Twin 9.5mm L-Arm and Clamp for Percussion Accessories

Gibraltar SC-DPLRA 9.5MM Two Post L-Rod Clamp:

Dual-Post L-Rod Adjustment Clamp with two 3/8"-diameter posts in two lengths on one end and an adjustable stand clamp on the other end, this hardware is great for mounting two accessories together at different heights