My part was thinning and it was a pain always trying to color the gray roots since my hair grows too fast. It is not a lot of hair but enough to cover the thinning area. It lies totally flat on your hair and take literally 3 seconds to put on your head with just 2 snaps. I find placing the snaps horizontally looks for realistic. Once it is on your head, just adjust using comb or your fingers. I apply hair spray and then flatten it even more on my head using my hands. After spending thousands of dollars trying to find a realistic piece of hair accessory, this is it. If you want a ton of hair or have severe hair loss, might not work. It is affordable enough to buy 1 and experiment. I bought all 3 sizes and gave it to my family members and buying more.