This steel-aluminum speaker stand with 1 3/8" Upper shaft comes with an 1 1/2" Adapter, making it universal for all standard speaker cabinets. Features & details This steel-aluminum speaker stand with 1 3/8" upper shaft comes with an 1 1/2" adapter, making it universal for all standard speaker cabinets Features a 2-section vertical shaft with preset height adjustment holes and locking pin for added security The tripod folding base with 120 degree design for low center of gravity folds flat and non-slip rubber end caps add stability