7-1/4 O.D. Top Sub furnished with 4-1/2 I.F. (with 6-1/2

7-1/4 O.D. Top Sub furnished with 4-1/2 I.F. (with 6-1/2 OD by 24 Ling Fishing Neck) box top connectionf/ 7-1/4 OD Rotating and Releasing Spear