Semroc Centering Ring 1/4" Plywood with Engine Hook Slot ST-5 to ST-8(1pk) SEM-CR-5-8EHP
Plywood ring for centering an ST-5 motor tube inside an ST-8 tube
Includes a slot for your engine hook to lift through
ID = 0.541"
OD = 0.908"
Thickness = 0.25"
Made in the USA