This is a four-fold type with a net. I took it to the rocky shore about 10 times in one season. After use, I performed basic maintenance on the same day, so there is no sticking or corrosion, and there are no problems with its use. However, there is some rust on the joints of the frame. Regarding the net, there is no visible damage to the nylon parts, but please check the condition in the photos. Since this item was used on the rocky shore, those seeking a perfect or pristine item are kindly requested to refrain from purchasing to avoid any issues.