If you are crafting on leather or maybe a medieval armor and you have decorative rivets you would like to add, then these washers are a must. Use them as backing for conchos , rivets, rosettes, and other decorative ornaments. This pack comes with a quantity of 50 washers that are made from brass with an antiqued finish. Use these washers to hold on adornments and other decorative pieces. Size: 8mm.