Stainless Steel Flush Mount Swivel Rod Holders 80 Series 15° 10-1/2″ Length 1-7/8″ ID. Swivel base ideal for bent butt rod fishing. Swivels to follow the fish without removing the rod from the rod holder. Great for tuna or other large fish. Cast 1-piece stainless steel swivel cup. Super smooth turning precision-machined 1/2 pivot with fine threads. This does not apply to items that arrived damaged. Warning: This product can expose you to chemicals including lead or di(2-ethylhexyl)phthalate or other chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.