The Pacific Drums by DW PDAXTA105 Ball-In-Socket Style drum arm and post is a durable and stable mounting option for rack toms or other drum accessories with an existing clamp. This enables a drummer to multi-task with existing boom stands which can also have secondary benefits - like improved bass drum tone and resonance through reduced tension. With a sharp chromed look and a girth of 10.5mm it can accommodate most conventional or floating drum hardware and other percussion accessories. Accessory clamp not included.