We have 200 + of each color in the picture.   We will allow you to pick the colors that you wanted.    You will just need to message me when you buy them to let me know what colors. Before I ship I will send you a message asking you what colors you may want.   If you don't specify what colors you want, we will give you random colors, usually 2 of each color. 

These have a black inner layer, so when you engrave them they are easy to see.  

They do not have Key rings, but do have a loop to put a key ring on them, and are not already engraved.   I do have a post that allows you to order a custom engraved dog tags.  

Overall Size:  1-1/2" wide and 1-3/16"  Tall