Provide long-lasting, bouncy curls without the headache [SEP] These are soft and pliable.  I find them a nice alternative to curling and flat irons. The curls from these last several days (personal experience) and the curls are fluffy and bouncy. The larger the roller, the larger the curl.  Mixing them with different size rods has been very successful and gain many compliments. They require being applied to dampened hair if hair is fine, straight. They are soft to sleep on, and when I'm in a hurry and applied for a half hour or so or while showering, they were just as effective as wearing for several hours.