Vertical Rod Holder (single). Price is set for one unit. 3 inch standard bases. 2 OD aluminum tube. Two thumb screws to hold down rod tree in track. Brand new from my inventory. 6061 T6 aluminum (marine grade). Fabricated in Au Gres Michigan. Found at M-65 bait shop 2 Au Gres MI. Made for track system. But can fit these to any boat with any base imaginable. Message me for more details and ask about my other rod tree styles! Quads- fixed or descending angles. Triples – fixed or descending angles. Doubles – fixed or descending angles. Single “stump” tree- 5 degree or 45 degree. Or any other personal needs.