Hidden adjustable backrest, oversized accessory box and lid, liftable big roller, front long handle, detachable four-foot lift;The bait tray holder is hidden inside the box, the turret rack can be adjusted at any angle, and the fish guard can be placed, realizing the function of double turrets and double fish guards; The umbrella stand can be adjusted by sliding left and right, has the function of fine-tuning the angle, which can make the umbrella protection range larger; Built-in sub-line box group and marked with line number, easy to select and store; Built-in line group placement location, floating box placement location, small medicine storage box.