Halo extensions use an invisible wire to add length and thickness without glue, tape or clips for damage-free easy on and off application in less than one minute. Made with ethically-sourced 100% REMY human hair. 12 inch long (120 grams of hair) Hidden Crown halo® extension | ash light blonde w/ lowlights | #60/8. Gently used. Washed once. Decided to get tape ins. This is great for volume and not too heavy. Comes with extra beads. The wire is a very strong, durable fishing wire that can withstand a lot of tension.