The Accessory Shaft Extender is an extender tube designed to lengthen accessory mounting on racks. This is great for players who are looking to add a little more height or length to their cymbals, tom arms, or electronics. It is perfect for positioning cymbals and accessories at the desired playing height, while keeping the clean effect of a low profile rack. Extend your cymbals and accessories an additional 18 inch.. Two models available that receive 7/8 inch. and 1 inch. diameter tubes.