Size:5.0 Mm*3.0 Mm*3.0 Mm (Outside Diameter*Inside Diameter*Length). | Quantity:500 Pieces Hair Extensions Micro Rings Links Beads. | Color: Blonde | Material:Aluminium And Micro-Silicone, 2 Layer With Silicone Inside Layer And Aluminium Outside Layer Which To Protect The Hair And Secure A Fine Hold. | Tips:The Extensions Will Last Several Months; It Depending On How Fast Your Own Hair Grows. Eventually, The Micro Rings Will Have To Be Removed, Or Moved Up Towards The Scalp Again.