This is an Ara rod holder. The rod angle can be adjusted to 7 different levels. The rod rest swings and has a built-in spring. The position can be adjusted forward and backward by changing the bolt. The stone-butt box sizes are: Front: 58mm x 40mm Rear: 58mm x 30mm Depth: 59mm The pin holes for the butt rope are 20mm and 35mm from the front, with 9mm holes. The box is removable. The height can be adjusted to 2 levels by changing the bolt. The anchor bolt hole diameter is 13mm. Total length: 370mm Weight: 2.7 kg The person in the photo on the rod weighs 70 kg. The rod is a Daiwa Carbon Whisker Senkaku 100-gou 484. The rod, reel, and rod keeper are not included. Please check the box size before purchasing.