The set is not so bad. In the recesses of the plastic work surface can make the 6 jars with glitter and stones, so they do not tip over or fall off. In the two compartments can store all accessories. The Magnifier enlarges really and is particularly useful for smaller tattoos such as the nails, the brushes are also useful and not hair. The plastic tweezers comes across a bit cheap, but also does its purpose. The headband is a bit tight for larger children. The manual is okay, the writing could have been a bit bigger but you can still read well. My daughter is 10 and has used the tattoos all alone, so she came along well and has the glitter distributed on the adhesive surface without large "Krümelei". The decals hold with us 1-2 days, depending on where they were placed. The tattoos on the nails you should seal it with nail polish, otherwise it survives no handwashing. In textiles, we have not tried it but the phone has my daughter decorated and also there holding it a few days.
Actually a nice set, but it could for the rather high price much more tattoos to be there.
Children older than 8 are thus get along well, you should definitely work carefully and slowly with the tattoos, once they are on the skin, they can no longer be moved. If you proceed with caution, the glitter does not crumble everything fully.