This is the popular "Wonder Core," a training device that allows you to easily work your abdominal muscles at home. With a simple motion of just leaning back, you can train your core, focusing on your abs. It's recommended for those who aren't good at exercise or those who want to start strength training. The cushion part is also sturdy, allowing you to train comfortably while supporting your body. It's foldable, so you can store it in a space-saving manner when not in use. 【Condition】 ・Used ・There are some scratches and signs of use associated with normal use, but there are no problems with its use. ・Everything in the photos is included. ※Please check the condition in the images. 【Recommended Points】 ・Easy abdominal training at home ・Space-saving storage ・Usable by both men and women Please purchase only if you understand that this is a used item. Instant purchase is OK.