Semroc Centering Rings Plywood ST-9 to ST-16(BT-60) with engine hook slot(2pk) SEM-CR-9-16EHP
Laser-cut rings for centering a ST-9 tube inside a ST-16(BT-60) tube that includes an engine hook slot
ID= 0.998"
OD= 1.6"
Thickness= 0.125"
Made in the USA