This box chain comes in 18k yellow gold and has a width of 0.60 millimeters.
Product Details:
Chain Information : 
|  Metal :  | 
 18K Yellow Gold  | 
| Chain Type :  | 
Box | 
| Clasp :  | 
Lobster Clasp | 
| Width :  | 
0.60 mm | 
Approximate Weight:
| Size | 
Weight | 
|      16'' | 
    1.3  grams  | 
|     18''  | 
     1.5  grams  | 
|     20''  | 
     1.7  grams  |