These instructions are provided by the manufacturer to help enable you to determine the best size Ruby Chin Strap for your needs. You will need an assistant to make the measurements. Every person is different so these instructions should be considered only as a guide; if you have doubts about which size to order please consider the Ruby Adjustable Chinstrap as an alternative or purchase our 30-Day Any Reason Return Protection Policy with your chinstrap.
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| 1. |
Sit in a comfortable chair. |
| 2. |
Have the assistant measure the circumference around the chin to the back of the neck, below the ears. The tape should be horizontal to the floor. |
| 3. |
If the circumference is less than 21 inches, choose Small |
| 4. |
If the circumference is between 21 and 23 inches, choose Medium. |
| 5. |
If the circumference is greater than 23 inches, choose Large |
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