Number: RH-20 Material: Aluminum alloy, industrial nylon Specification: Can be clipped on the side of the boat 0cm-5cm Introduction: Adjustable 360 degrees, upper part is the barrel, clip can be locked to prevent fishing rod from slipping. Barrel opening 3cm Number: RH-30 Material: Industrial nylon with stainless steel screws Specification: Can be clipped on the side of the boat 0cm-14cm Introduction: Adjustable 360 degrees, upper part is the barrel, clip can be locked to prevent fishing rod from slipping Number: RH-40 Material: industrial nylon, stainless steel screws Specification: Dual use: kayak fishing, can also be clipped on yacht railing Introduction: 360-degree adjustable angle direction Number: RH-50 Material: PA with high temperature resistance and toughness Specification: Dual use: kayak fishing, can also be clipped on yacht railing Introduction: 360-degree adjustable angle direction Specifications: and high quality 360-degree adjustable Includes four stainless steel screws and nuts Suitable for kayak, fishing boat, or yacht railing Tough, corrosion-resistant, durable and long lasting Firmly and securely holds both conventional and spinning rods Can be mounted securely to a rail, side, or flush to the gunnel of a boat or kayak Package Included: 1 x Boat Rod Holder Selected models include 4 screws