Ludwig P-1216D (4th Generation of the P-1216) Mounting Bracket used for Floor Tom Legs, Toms, Gull Wing Spurs, Shell Mount Cymbal Holders, etc. These are NOS (New Old Stock) from late 80s into 90s. Has the P-17321 Backing Plate (which does not come with the P-1216D any longer), the P-2952 T -Handle, mounting screws and lock washers. The mount hole is for a 3/8" or 9.5mm L-Arm, Floor Tom Leg, Spur, etc.The mount hole is notched for the P-1728 Quick Set Memory Lock.