Perfectly Fit: The dimension of the crib sheet and protector is 52”X 28”, With the elastic bandage surround, ensures our crib mattress sheets and covers can snug fit your crib mattress no loose but flat which gives your baby a comfortable bedding. | Highest Quality: These crib sheets are made of ultra soft microfiber, woven into a soft and durable fabric. Your baby will be enjoying the soft, smooth and comfortable feeling when sleeps or plays in the crib. Also our crib mattress sheets are washable and pre-shrinked. Biloban Waterproof baby crib mattress cover keeps your baby warmer in winter and cooler in summer. Soft fabric is the most absorbent textiles fabric, drawing moisture away from the skin faster and allowing your child to have a more comfortable night's sleep. | Absorbent, Ultra Soft and Noiseless: Our absorbent and noiseless toddler mattress protector with an extra thick padding ensures your little one feel comfortable when lying or playing on it. | Eco-friendly, Durable and Machine-washable: Tired of gasoline-like smells and holes in new sheets? We’ve got you covered! Our crib sheets and crib mattress protector are produced under stringent environmental standards, so you get peace of mind when your little one sleeps. Our crib sheets and waterproof mattress protector are machine washable and dryer friendly. | Biloban's Life-time Guarantee: Biloban's quality you can trust. If the product does not meet your needs for any reason, replacement or money back, no questions asked!