All Rite Catch & Release Single Rod Holder For use on ATVs and bicycles to carry 1 fishing rod Master Block attaches to tubular/square bars or railings 1/2 to 1 in diameter, a bicycles chainstay AND directly to a bicycles rear axle Easy to attach and quick to remove The reel stem slides down split channel in tube and locks into place, keeping the rod secure even while riding on rough terrain; Tapered opening allows user to easily remove fishing rod Bracket can also be turned to hold rod while fishing from ATV