This round box chain comes in 14k white gold and has a width of 2.5 millimeters.
Product Details:
Chain Information : 
|  Metal :  | 
 14K White Gold  | 
| Chain Type :  | 
Box | 
| Clasp :  | 
Lobster Clasp | 
| Width :  | 
2.50 mm | 
Approximate Weight:
| Size | 
Weight | 
|      16 | 
    13.8  grams  | 
|     18  | 
     15.6  grams  | 
|     20  | 
     17.3  grams  | 
|     24  | 
     20.8  grams  |