Micro loop hair extensions, also known as micro ring hair extensions, are a fast and easy way to add length and volume to your hair. Micro ring hair extensions use silicone lined aluminium rings to hold the hair extensions to your natural hair. You don't need to use any glue, tape, or chemicals to hold them in place. Micro ring hair extensions will last for 3-4 months before the need for any maintenance. They are made from the highest grade 100% Remy human hair.