Wonder Core Smart Smart Wonder Core Pink This is an abdominal exercise machine that allows you to train your abs simply by leaning back. You can self-train without using electricity. It's space-saving and foldable, making storage convenient. I'm selling it due to a move. The non-woven fabric on the back is damaged, but it doesn't affect its use. Please understand that this is a used item, and please purchase if you are not concerned about minor details. - Model Name: Smart Wonder Core (Wonder Core) - Color: Black, Pink - Features: With handles, cushioned grips - Usage: Abdominal training, full-body exercise - Design: Compact, portable I bought it but didn't use it much, and it was stored in the closet. I checked its operation briefly, and there were no problems. I bought it for 10,000 yen at the time. Instruction manual included.