U-shaped design low-rebound office cushion that supports posture. - Model Name: Office Cushion Bresa - Color: Black - Features: U-shaped design, non-slip processing, posture support - Uses: Office, home use - Material: Low-rebound urethane I used it only a few times during my pregnancy because my hip joints were painful. There are no noticeable stains or scratches, and it is in a clean condition. It is recommended for the office, as well as for telework and studying at home. This item is highly recommended for working pregnant women and those who sit for long periods.