BabyBjorn Baby Carrier Original - Black We mainly used a stroller, so we didn't use the baby carrier very often, but we used it for things like vaccinations. It was easy to put on and very convenient. There is no instruction manual, so please refer to the pictures on the baby carrier itself or look up the manual online. There are no major stains, and I think it can still be used, but please understand that it is a used item. Facing-in carry: from 1 month old (3.5 kg) to 14 months old (11 kg) Facing-out carry: from 5 months old to 14 months old (11 kg)