... Detailed Product Description1)Item, eva palte2) Materials, EVA3) Sizes (diameter mm): customize4)Shape, size, & printing can be done as customs' design ... requirement.5)Printing: Screen printing/CMYK Printing6)Ring dia: 20 mm7)Rope materials: Nylon8)The keychain have three layers,each ... layers is 2 mm.total thickness: 10 mm. Each layer can be any colors.5) ...