✅ Place the pillow on a flat and safe surface. ✅ Make sure your baby's head is positioned in the center of the designated hole. ✅ Measuring just 9.8 * 8.6 * 1.2 inches, it is used for car seats, strollers, and is suitable for families and travel. ✅Hand washing and air drying in the shade are recommended (washing machine may deform).