Our Key Chains are made of 100% American Hermann Oak, full-grain 10-12 ounce (4.4-4.8mm) thick quality leather.
The dog tag style keychains come with, or without, a stitch line around them. 
The dog tag style key chains are 3 inches long, or tall, and 1-5/8" wide. 
The rectangle keychains are 3-1/2 inches tall and 1-1/4 inches wide. 
the square keychains are 2 inches tall and 1-1/2 inches wide
You can choose either Bronze, Gold, Silver or Rose Gold for the key chain rings and hooks.  
And either gold or silver for the rivet.