meh [SEP] these root lifting rollers clamp snuggly into place thus the stars the results have not lived up to expectations however even when using with slightly damp hair or styling products and a hair dryer the root lift is minimal and not at all lasting i tried these with medium short hair on top front and again after a pixie cut i get better results with root lift spray a round brush and using a hair dryer with cool shot glad they are recyclable