works awesome [SEP] love these ponytail binders they are a bit thicker softer and they have a medal connector but all sides are smooth very easy to put in and very easy to remove i now have thinner hair and they stay put where i put them and it does not hurt just because i put my hair up for the day will be buying again if i need to but at this time i will probably just wash them out and reuse until they break if they break