This is a 3-stage folding footstool. I bought it for practicing stringed instruments, but I'm selling it because I haven't used it much. It's made of aluminum, so it's lightweight, and it comes with a carrying bag. - Model: GF-1800 - Material: Aluminum - Color: Black - Design: Folding - Intended Use: Footstool Product details are as follows: Size: Approximately 19.5cm x 8.5cm Height: 3-stage adjustment, approximately 13.5, 16.5, and 18.5cm Weight: Approximately 225g Accessories: Carrying bag Thank you for looking.