Materials: Zinc Alloy. Package include 10pcs Round Spring Clip Carabiners. Outer diameter: 1.89"(4.8cm). Inner diameter: 1.5"(3.8cm). Lightweight, beautiful, durable and Rust-Proof. These O rings will go well with key chains, small dog leashes, DIY accessories, webbing, belt, hanging crafts, purse strap, shoulder strap and handbag strap etc. 10Pcs zinc alloy round spring clip carabiner, 1.5" inner diameter, gold color, for key chains, small dog leashes, DIY accessories, webbing, belt, hanging crafts, purse strap, shoulder strap and handbag strap etc.