For our customers with nickel allergies: These are made from Tungsten Carbide. 

FINDING YOUR RING SIZE

1. Cut a thin (and long) strip of paper.
2. Wrap the paper/string around the finger/thumb you'll be wearing the ring on just below the knuckle (you’ll want to make sure your ring can easily fit over this part).
3. Once it’s snug you’ll want to mark where the two ends meet.

Straighten out the paper/string and measure how many millimeters from the mark you just made to the end of the paper you used. Match that measurement with the corresponding ring sizes below.

Product Specifications:

• D20 Heartbeat Tungsten Ring
• Available in US sizes 8, 9, 10, 11, 12, 13 and 14
• Materials: Tungsten Carbide
• Weight: .6 oz