I have twins that are just under 2 yrs old. One very petite and light, the other a chunk (30lbs). This works for both, though the lightest one absolutely loves this thing! She gets excited and asks to be carried in it. Sometimes adjusting it to feel just right takes some fiddling, but it is fabulous for easy on and off. Hold them a while, then set them down. Then hold them again. I trade babies often and it does really save the arm. I actually wish I had found this sooner so I could have used more. Paid around $19 for this and would recommend for the price. I have other carriers I have used so kiddos are used to them and don't dislike it. Will pass on to another mother when my kiddos get too big. (The fabric is a bit more coarse than expected, I'm sure my fault for expecting different.) The sitting area has grippy fabric so kiddos do not slide or slip any. For washing purposes I would recommend a darker color. The reflector fabric piping works very well. I have had for 2 days and have used quite a bit already. I would recommend only using for bigger babies. You do have to keep an arm around them just as you would if carrying them on your hip regularly, but this takes a lot of the weight off your arm. I can carry both of my twins at the same time, but it is exhausting. This sling keeps one steady and secure so have more energy to pick up and tote the second one. It is surprising how much it does help.