1. Easy Installation This fishing rod holder can mount on horizontal or vertical way. Super easy for installation. 2. 360 Degree Adjustable Unscrew the two different joints, then the fishing rods can be adjusted to any orientation you want. 3. Wide Usage This fishing rod holder can be clamped everywhere you want, such as boats, kayaks, canoe, pier,dock handrail and so on. 4. Dimension Clamp:1.85" Length of Racks:9.45" Diameter of Racks:1.5"