Color: Blue Set of 3 Outer diameter: approx. 2.4cm Inner diameter: approx. 1.6cm Thickness: approx. 3mm *Slight variations may occur* Small, round carabiner Convenient for attaching mascot keychains, acrylic stands, rubber straps, etc. to the hardware of backpacks, bags, etc. A compact size that isn't too large. We have all 16 colors available. We have stock, so we offer discounts for multiple purchases. Please feel free to ask. a-23 *It may be difficult to adjust the lighting during photography, and the color of the actual product may differ from the photos depending on the viewing environment and monitor resolution.* *There may be minor scratches etc. from the manufacturing process. Please understand this beforehand.*