This classic box chain comes in 14k yellow gold and has a width of 0.45 millimeters.
Product Details:
Chain Information : 
|  Metal :  | 
 14K Yellow Gold  | 
| Width :  | 
0.45 mm | 
| Clasp :  | 
Spring Ring | 
| Chain Type :  | 
Box | 
Approximate Weight:
| Size | 
Weight | 
|      16'' | 
    0.78  grams  | 
|     18''  | 
     0.8  grams  | 
|     20''  | 
     0.94  grams  |