Hummingbird Necklace on your choice of 18-inch or 24-inch Silver Plated Chain. Dangling Tibetan Silver Hummingbird Charm-Pendant measures approximately 20mm tall x 18mm wide (just over 3/4" x just under 3/4" wide). Pendant measurements do not include the length of any removable attachments. These will vary some, but a standard attached jump ring adds about 4mm onto the overall length. All components are lead-free and nickel-free. Sold by Necklace.