Amazon.com : 12 Inch 30 Strands Dreadlock Extensions for 。12 Inch 0.8cm Thickness Loc Extensions Human Hair 30 Strands Dreadlock Extensions Human Hair For Women Men 100% Full Handmade Permanent Loc Extensions Can Be Dyed And Bleached Curled (Natual Black) Hair Material : 100% human hair extension that can be tested with a burn test. Its advantages are soft, light weight and very natural, can be extended or cut, can be bleached and dyed. Easy To Install: The Locs Can Be Added To Existing Locs To Add Length Or For Repairs On Broken Locs.. Please Wash Gently Before Use And You Can Choose The Right Conditioner And Essential Oil According To The Hair Condition.