Size-16PCS Mountaineering Key Chains, Split Ring Diameter: 35mm. The size can be easily adapted to your daily needs. High Quality Zinc Alloy - Our carabiner keychain, professionally designed with high quality zinc alloy. Strong and stable, yet lightweight. 360 Rotation - The base can be rotated 360, which is convenient to use and can be rotated in any direction. Also helps to avoid tangles. High Quality Carabiner - Strong and durable spring attached to the secure latch attachment, the automatic lock will never lose the key again. Widely Used - High quality carabiner keychain, suitable for lanyards, belts, key chains, purses, purses, also ideal for jewelry making, children's art projects and other small items. < p>Note: The data are manual measurement, please allow a 1-3cm error, due to the differences between the light and the display, there will be a certain color difference, the specific received in kind prevail.