Check the listing for details. 10 Pcs Trigger Spring O Rings 3/4"(19mm) ID with Fixed Eyelet, Bright Silver. Color: Bright Silver, Condition: New. Listed at 12.36 USD. Descriptions:Durable Zinc Alloy: The spring o rings are made from sturdy zinc alloy, which is shiny, and not easy to fade, anti-rust, anti-corrosion, and durable for long-lasting use, ensuring reliability and durability.Spring Snap Design: The O rings have a built-in spring structure that provides a secure closure for fastening needs, allowing the ring to automatically maintain a fastened state when closed, and is convenient and quick to open and close, a labor-saving operation, and can be used repeatedly.Easy Attachment: Just pressing the spring hook can quickly open the connection, and it will automatically close when released, ensuring the stability of the connection, and with a fixed eyelet for hanging convenient, keeps them from slipping.