Review title is which work fine, because like others who use the grey and ... [SEP] Unfortunately, I think the reviewers who gave these a thumbs up are women who use mostly the orange and smaller rods, which work fine, because like others who use the grey and purple ones, I find them impossible to use.  In my kit the grey ones are the largest ones, not the purple, but the purple size was exactly what I needed now and I had to use rubber bands to hold them in the bended form to make curls. Without the rubber bands they just unwind immediately and are useless.  With my hair being the length it is right now orange is probably good for real curls but I need the purple for nice soft wavy curls and will eventually need the grey ones because I'm letting my hair grow even longer.  If you think you'll need the purple or grey rods just avoid this product altogether.