I recieved this oddly shaped hairbrush in my stocking for Christmas. This is what the add says it does:
The new revolution in de-tangling hair, gently flexes and does not pull, effortlessly delivering smooth and shiny hair in an instant. It works on wet and dry hair, eliminating tangles and knots and minimizing breaking, splitting and damaging caused by mistreatment. Its secret is it allows you to transform tangled hair into stress free, style-able hair whilst encouraging your hair's natural shine and thickness.