This item can be used as a pendant top with a chain or as a brooch. You can attach it to a necklace by threading it onto your own chain or leather cord, or attach a strap to make it a keychain. This pendant top can be arranged to your liking. Lepidoptera, which has many species with beautiful and vibrant wings. We have enclosed the wings of butterflies in a small glass world. Morpho butterflies do not have blue pigment in their wings. They shine blue due to the light hitting the fine structure of the wings. Therefore, it sparkles and has a presence, receiving faint light not only indoors, but also on cloudy days or in the shade. It's not just a single color of blue, but you can enjoy various expressions, from light purple and greenish colors to light brown, depending on the angle of the light. How about a beautiful, science-themed decorative item? The wings used are real, natural specimens. Please remove it when bathing, and avoid using it in places with high temperature and humidity. Since it is sealed with a glass cover, it is heavy for a brooch. Please be aware of this when wearing it on thin clothing. The photos were taken by a window with natural light. Please note that the color may appear different from the actual item depending on the brightness and angle of the photography, as well as the device you are viewing it on. Color: Blue系 (Blue-based) ※※The chain in the image is for illustrative purposes. It is not included in the delivered content※※