It’s for my 3 years old granddaughter. It’s easy to do the bun and look nice. Unfortunately, after a few used, one of them couldn’t make it back to straight line, only curl, but still have two more. Hope they can last longer.We used these for my daughters hair for her ballet recital. She has four performances in three days and her hair stayed perfect for each and every show. This was so easy to use and helps us create the perfect ballet bun every time.I purchased a pack of 3 for my daughters who are in ballet, and they work great.Make a pony tailPut the hair inside the two pieces and pull down to almost the end of the hairStart rolling upward until you reach the hair tieSnap downwardSpread out the hairMy 10 year old has fine hair, but a lot of it. Her buns look perfect with this product.My 5 year old has baby duck feather fine hair. Her buns aren’t quite as lovely, but still a major improvement from what we were managing before.I got a 3 pack of these and one was broken when I got it. The other 2 have ends slipping off already.It’s hard to figure out which way to “crack” the plastic to make a complete bun. It’s like to slap bracelets sewn crudely together with fabric. I went back and ordered the mesh donut things for my girls ballet class and they are a lot easier.I gave these a try based on the product reviews I read, so I thought I would pay it forward. I first bought these in the standard adult size. I have medium length hair. They worked but were just too big for my thin hair to cover. My daughters have long thick hair and a lot of it and they were perfect and quick for them to put their hair up. Looked much better than their normal messy way. I ordered the ones for kids and they were perfect for me. It took some practice to perfect, but the best way is to use a pony tail holder or hair tie, you wont see it. Rolling it looser rather than tight works to add more volume. I love how full my buns look now. I have tried the sock thing, and plastic sponge looking things and they did not work for short or thin hair. I am very happy and shared one with my boss. I am also going to order a set for my 3 year old niece. I think this will be good because she won’t be able to figure out how to get them out and look cute all the time rather than a rug rat. I will probably buy more to give to others. Great invention and product. Great design and bought 2 different colors and they blend great.I am really terrible at doing hair and needed a neat bun for my four year old's dance recital. I had to practice a few times but once I figured it out, it made really nice, neat buns.It's easy to use once you practice it 5 or 10 times to figure out how to curl it to make the "slap bracelet" curls down. Still takes me a few times but better. I also still have to secure some of it down with bobbys bc her hair is still a little short and just barely all goes up in a pony tail. It's still easier than doing one without this thing. It stays intact but her hair falls down bc it normally does in a pony tail until it grows a little longer. I'll have to use clips for the bottom.