Features: Marine Grade 316 Stainless Steel, Beautiful appearance, strong and Enduring. Can offer support for fishing rod when you in a rest or need strength for striking. Diameter suitable for various fishing rod size. Easy to install and stable. Suitable for fishing enthusiasts, Boats owners, fishermen, and other groups who need to engages in fishing activity on boards. Suitable for seawater environment, ensuring long terms use. Specifications: Materials: Stainless Steel 316 Size: 22mm/25mm/30mm (as shown) Package Includes: 1pc Boats Fishing Rod Holder note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.