●Cover: High quality cotton material; Filling: High density sponge ●Triangular mat supports posture retention and changes in posture ●The interior is made of high resilience polyurethane foam that is not too hard or too soft, and is resistant to fatigue and durable ●This triangle nursing pad supports the curves of your back, hips, arms, legs, and more. Create space between your body and bed for convenient and easy assistance ●Cover can be removed for cleaning. Comfortable to use at any time