Professional Lifetime Service Team : The colors similar to the real picture may differ slightly from the colors displayed due to lighting, display and settings. If you have any questions, you can contact us at any time, all of which will be answered with professional suggestions within 24 hours. Quantity : 200pcs, Black, Brown, Blonde, L.Brown, D.Brown 5 colors available. Material : Aluminum & Silicone, Nano ring beads. Available color : Black, Dark Brown, Brown, Blonde, Light Brown. Size : 3.0mm(Outer Diameter) 1.0mm(Inner Diameter) 2.0mm(Height), it is small nano beads.