Even people with good muscle tone can tire by the end of the day, and using a wedge cushion encourages better posture. This pad has a 3 1/2" high front and tapers to 1" in back, aiding individuals who are prone toward slipping down into a seat. The straps have a buckle adjustment for securing it to a chair. The soft foam feels great, and our vinyl coating makes cleaning quick and easy. Please note: Custom colors and/or modifications to any product require up to 7 days for fabrication. Custom and/or modified items are not returnable.