Abacus necklace charm vtg 80s plastic rare HTF w/aqua blue dog tag chain 24"

Will be with chain that fits overhead. I added. very rare charm! Originally these were charms for keychains in the 80s. I turned this one into a necklace by adding the 24" dog tag chain. It could be changed to another color if preferred. I have pink, purple and royal blue. Getting low on stock, only one available of each . This one is a different shade of teal or turquoise blue which matches the best IMO I had a couple of other charms such as a blender that were sold lost or stolen over the years