it is a loose rope chain made of links that resemble snake scales. 

the body is about 34" long (slightly stretchy) 

and tipped at one end with a snake tail, 

and the other end with a snake head with a magnet on the underside of its head. 

both tips have clear rhinestones, and the head has black stone eyes. 

these are pretty versatile; If you buy just one you can wear it dozens of ways, 

if you buy 2 or more you can increase that to hundreds of ways 

(Note that in some of the pics, there are 2 snakes used). 

with a little creativity, they can be worn as: 

Necklace 

Arm Band

Bracelet 

Anklet 

Belt 

Hair/head decoration 

Body jewelry  

They just have a standard magnet in them now, 

which is good for most uses,

 but if you need them for more active wear and want to make sure they don't detach, 

you can either tie it in a knot near the head which helps hold it together, 

or just pry out the little magnet and replace it with a more powerful neodymium one. 

or just use more magnets between coils.

please note that they're just ornamentation: 

under no circumstance should you expect these to be able to hold up a pair of pants or do anything besides look pretty. 

 I also have some similar ones, but in silver, in another listing.