The K&M 13803 is a luxurious hazelnut velvet seat cushion designed to add comfort and style to compatible K&M chairs, benches and stools. Made from soft, durable velvet with supportive padding, it enhances seating comfort during long rehearsals, lessons or performances while helping maintain healthy posture. Easy to attach and crafted to retain its shape over time, it’s a practical and elegant upgrade ideal for orchestras, studios, teaching spaces and home practice environments.