500PCS/Bottle Professional Silicone Lining Hair Extension Micro Links Rings Beads Tools(Blonde) Description: This product is hair extension ring, a great accessory for hair extension. It is made of material, which is safe to your hair and environmental friendly. Comes with 500pcs in one bottle is very practical. With very soft silicone lining, which allows you to install them to the head for maximum comfort to the client and undetectable. It holds human hair very tightly after pinched and it will not easily get slide when wearing. Available in 5 colors, you have more selection.  Features: Made of material, which is safe to put on your hair and without damage to your hair. Comes with 500pcs in one bottle is very practical. With very soft silicone lining, which allows you to install them to the head for maximum comfort to the client and undetectable. It holds human hair very tightly after pinched and it will not easily get slide when wearing. Available in 5 colors, you have more selections. A great accessory for hair extension, easy to put on and remove. Specification: Condition: Item Type: Hair Extension Rings Material: Aluminum + Silicone Inner Diameter: Approx. 0.3cm / 0.12inch Outer Diameter: Approx. 0.5cm / 0.2inch Height: Approx. 0.3cm / 0.12inch Bottle Size: Approx. 3.7 * 6.7cm / 1.5 * 2.6inch Color: Black, Dark Brown, Brown, Light Brown, Blonde(Optional) Package Weight: Approx. 58g Package Include: 1 x  Bottle Of 500PCS Hair Extension Rings Notes: 1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.