Super easy to use - a blogger favourite. Gives the look of a blowdry but without the faf! 20 rollers take 2 minutes to heat up, in full working order but missing the lid (I took it off to fit in the drawer). Medium size rollers create tighter glamorous curls and large size rollers provide greater root lift on most hair lengths and the Kate Middleton blow dry look on really long styles. Rollers can be used on any hair length as long as your hair can fit around the roller once.