The smallest and most undetectable no-glue hair extension technique available among all products combines the strands of natural hair with the extension strand using tiny metal tubes. Tiny silicone-lined aluminum rings hold the extensions securely in place without the need for any harsh glues or chemicals. A micro loop extension is applied to a similar-sized piece of your own hair around 1cm away from the scalp. 50 Pieces with each piece weighing 1g are included in our micro ring hair extensions which are designed to give you reasonable highlights and cover your entire head with 2-4 packs. Wash hair with neutral shampoo and conditioner deep conditioning once a week. After 2-3 months need to re-open the loop move the extension up and clamp closed loops. Please attention: if you have very short hair it will be harder to make the extensions invisible. If you want longer or fuller hair for a short period of time this is a very time-consuming process.