Big Jon Multi-Set Rod Holder Trees feature your choice of three or four Multi-Set Rod Holders mounted on a 36 inch mast. The mast can be rotated 90 degrees to four locking positions and can also be removed from the base for easy storage. The mast features the same heavy aluminum construction as all Big Jon components. The precision-machined billet aluminum base has been designed to fit the Big Jon Track System (sold separately), or it can be mounted without the track system. These Multi-Set Rod Holders adjust to nine positive locking positions with one hand. To change position, you pull out on the holder tube at the the spring loaded dome shaped base, rotating the unit until it locks into another position. Easy, positive, one handed position changes are possible on the water, with out tools. These thick walled aluminium rod holders feature a 9.5 inch tube. Big Jon Multi-Set Rod Holder Trees include mounting instructions. These Rod Holder Trees are a silver anodized finish. Big Jon Multi-Set Rod Holder Trees are made in the U.S.A.