Note, that It doesn't matter if the collar itself is wider because as long as the top tier is 3/8" wide the 3/8' charms or letters will slide right on to that portion.
These collars, letters and charms are a very eye catching accessory. Since you can create the custom collar for you and your pet, they can add another dimension to your pet's personality & individuality.
So go ahead and have fun personalizing with different color and style collars, slide charms and letters. Add some more "Pet Bling" by accessorizing with Pandora's plain or Swarovski Crystal pet tags. We have so many styles to choose from, and the engraving is always free.