Currently Back Ordered from the supplier. No firm ETA on more stock. This Tom Arm has a 10.5mm Tama type L-arm . It also has a 7/8in down tube, which is 15.5 inches long. Fits most Tama, Premier, Pacific, Taye, Ayotte, Roland eletronic pads, current Remo drums, and all Drummaker.com tom brackets.