Small Key Chain Rings Sizes: Featuring outside diameter of 1/2"(15mm) and wire thickness of 0.047"(1.2mm), it is suitable for a variety of applications, including holding keys, car keys, ID tags, pet tags. Package Includes: Supplied in a bulk package of 100 / 400 pieces, the silver finish provides a refined look, enhanced by smooth edges. This quantity supports extensive crafting, repair, and organizational projects. Keychains Material: Crafted from iron with a protective nickel coating, these key rings are built to withstand regular use without rusting. For optimal results, it is recommended to avoid prolonged exposure to moisture or high-humidity environments. Double Loop Design: Facilitates effortless opening and closing without requiring additional tools, allowing users to quickly attach or detach items. Versatile for Uses: Use them to bundle house keys, car keys, or as components in DIY projects. They are also suitable for crafting pet collar tags, key chains, and organizing small accessories, allowing you to apply them across different needs. Color: Silver Material: Metal Package Contents: 100*key rings / 400*key rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.