Universal Fit: 23in long x20in wide , Compatible with Boppy Pillow and others. Easy to install and use, Enough space and strechy.You can see your baby at any time. ULTRA SOFT MATERIAL. Our nursing pillow cover are made of ultra soft,safe,. We use premium microfiber fabric made from breathable and cozy toncoter to ensure your baby is safe, comfortable. ADORABLE DESIGNS. perfect addition to any baby girl or boy registry!