The 4 Pack of Little Lambs Adjustable Swaddle Wraps by Delta Children mimics the safety and comfort of mom’s womb and helps prevent startle reflex, promoting a safer, sounder sleep for your newborn. An easy option that allows parents to quickly achieve a snug fit, these super-soft swaddles feature an adjustable design that fasten with hook and loop attachments to create the perfect fit. Made of 100% natural cotton, theses Little Lambs Adjustable Swaddle Wraps are gentle on baby's skin, but durable and machine washable for everyday use. The perfect option, these swaddles will keep your little one comfy through the night--and when your baby sleeps well, so will you. Size Small/Medium fits ages 0-3 months, 7-14 pounds.