I was extremely disappointed with Twoworld's baby harness as a worried mom and product manager. The product is dangerous for young infants in addition to being poorly made. Babies find the harness uncomfortable to wear and challenging to modify. The thin straps irritate a child's epidermis and cause red marks and discomfort. The harness is also insufficient to keep a baby in place, as I have seen on numerous instances when my child was able to wriggle free. I attempted to contact Twoworld's customer service for assistance, but got no answer. This is unacceptable, particularly for a business that focuses on safety and baby products. My professional view is that Twoworld's baby harness is a hazardous item that endangers kids. For your baby's safety, I highly advise against buying this item and suggest looking for a more reputable and dependable brand.