the bird is technically a locket, but its a really weird shape and doesn't close very flush, 

so i'm not sure you'll be able to find any use for it.  

 24" chain. bird a little over 2.5" long.  

These are made by me, in small batches. 

 there may be slight variations in length of chain, or type of clasp or rings used.  

all have the exact same pendants though. 

Also have the same locket on a cluster necklace in another listing in my eBay store.