Rod holder for deep-sea fishing rods

This is a fishing rod rest.
The rod angle can be changed in 7 stages.
The rod rest part swings and has a built-in spring.
The front and back can be adjusted by changing the bolt.
The butt holder box dimensions are:
Front: 58 x 40 mm
Rear: 58 x 30 mm
Depth: 59 mm
The pinholes for the butt end are located at 20mm and 35mm from the front, with 9mm holes.
If the box is removed, a rod keeper can be attached.
The height can be changed in 2 stages by changing the box mounting bolt.
The anchor bolt hole diameter is 13mm.
Overall length: 370mm
Weight: 2.7 kg
The weight of the person in the photo on the rod is 70 kg.
The rod is a Daiwa Carbon Whisker Senkaku 100-484.
Rod, reel, and rod keeper are not included.
Please check the butt holder box dimensions before purchasing.