Silver- or gold-plated absolutely adorable small 18x5mm very small hanging kitty cat pendant (~1.6mm bail opening) hanging on ~17-18" plated chain. Great gift for that special someone even if that's you. The chain style sometimes will vary as it is based on my chains available in-stock BUT a majority will be the chain you see in the photo.
The photo shows you different pendant angles of the same pendant and is just for your reference. Another photo shows all three finishes we do have available in this design available in other listings. Each price is for 1 necklace. Give this as a gift to that special someone even if that special someone is you. We do not know what the base metal is though. This picture is enlarged to show detail.
There are plenty of free on-line measurement converters should you wish to use different measurements.