What You Will Get: You Will Receive 50 Pieces Of Glasses Chain Ends, Including 20 Pieces Of Black And 30 Pieces Of White Glasses Chain Ends, Each Color Glasses Chain Ends Have Kc Gold And Silver Metal Coils, High Quality Material: Glasses Chain Ends Are Made Of Elastic Silicone And Sturdy, Non-Rusting Metal, Not Easy To Break, Durable And Reusable. Adjustable Adjustment: The End Of The Glasses Chain Has A Total Length Of About 2cm, And The Metal Coil Is 8mm Long, The Metal Coil Can Be Moved To Adjust The Grip Of The Glasses, Suitable For Most Glasses Arms. Easy To Use: Just Slide One Side Of The Silicone Ring Onto The Arm Of The Glasses And Attach The Other Side To A Chain Or Diy Decorative Necklace. Make Sure Your Glasses Stay Firmly On Your Ears And Won'T Slip Off Easily. Wide Application: Suitable For Different Types Of Glasses Such As Ordinary Glasses, Sunglasses, Goggles, Etc. The End Ring Can Be Used To Hang The Glasses Around The Neck For A Fashionable Appearance.