Our new old stock (never used) Heart ID Tag is golden metal, with a 3/4 inch x 1-1/4" double heart plaque. The total length is about 6 inches.
We like to remove the chain (keep it for another project of course!) and use the plaque as a tag on all kinds of artwork.
Alcohol-based inks and dyes work best, but try anything. We've also used metal alphabet punches to indent special terms of endearment on the double heart.
Our little tags/bracelets were novelty items and the quality is such. These are nicely made and quite sturdy for their origin. You would find them in a 5 & 10 or dime store.
Not for children.