Size: about 10mm in diameter, 1mm thick, 8mm inner diameter. about 130pcs each color, about 1950pcs totally 15 Color: Silver, green yellow, gold, black, etc - Beautiful colors in fixed quantity, can meet your craft projects perfectly. Great value and the many colors were fun! Material: Made of soft aluminum, easy to open and close them. The rings are fairly thin and pliable with just your fingers. Good colors and great for practicing chainmaille. Chainmail Making: You can use these to make a chainmail mesh to cover part of your costume. They work great for spirals and Mobius rings and the color is beautiful! Wide Usage: Perfect for making jump ring necklaces, bracelets, anklets like our picture shows, also suitable for making outstanding jewelry or mail armor