Microlinks — also called micro rings or micro beads — are a popular alternative option to sew-in weaves and tape-in extensions. These are normally attached to strands of hair using small tubes or rings, and they're said to be safer than other kinds of extensions because they don't damage the hair and scalp by putting too much weight or stress on them. They also don't require the use of glue or adhesive, and they're a lot less noticeable in your hair.
One downside, depending on how you look at it, is that getting a full head of microlinks might take anywhere from one to five hours to complete, but they can last up to two to three months.