Simple geometric shape, made of non-allergic steel needle material, It is more textured with leather. Material: cowhide / anti-allergic steel needle / steel buckle Size: about 0.7cm in diameter <<Change folder reference|transparent plastic clip>> https://www.rosastudio-tw.com/image/data/2019/02/25/4b39b229f33e153efeadd44b68cf0aaf.jpg https://www.rosastudio-tw.com/image/data/2019/02/25/831adaed56b663853d4f40843ad36cca.jpg https://www.rosastudio-tw.com/image/data/2019/02/25/a9339eeae69696f7ab67292694f77ede.jpg ░Notes░ Please refer to your own for sensitive skin. If the product is sold, there is no return service. ░Maintenance░ 1 Brass material: no electroplating, it will oxidize and darken over time, and it will be retro yellow fog when worn regularly. 2 electroplating material: the longer the product is over time, the oxidation becomes darker. 3 glass, ceramic material: to avoid falling, collision and extrusion. 4 leather material: using European imported vegetable tanned leather, leather will add dark color with time. 5 When the jewelry is oxidized, it can be wiped and kept bright with a silver cloth. If it is not worn, it is recommended to receive the extended life in the zipper bag. 6 It is recommended to take off the jewelry when bathing, swimming, hot springs or touching any chemicals or makeup products.