I bought one set for my granddaughter before she wa born and used them as soon as we brought her home. we love these straps. although they are a little overfilled, the material is soft and it kept the baby’s head stable, no risk of bumping or shifting with the car movement. now that she’s a couple of months old, they are just as comfortable and offer support; they don’t have rough edges. we liked them so much we bought two additional sets to use on her other seats and swings.