Samsung Galaxy Smart Ring Sizing Kit with Sizes 5-13 (9 Pieces Total).
Features:A SIZING KIT FOR A FLAWLESS FIT: Finding your perfect fit is a breeze with our convenient Galaxy Ring Sizing Kit; Select your best fit from a variety of sizing optionsHOW TO USE THE SIZING KIT: After receiving the Galaxy Ring Sizing Kit, choose a sample ring and wear it for at least 24 hours (including sleep); Check that its not too small or too bigSENSORS SHOULD FACE YOUR PALM: The 3 bumps on the inner part of the sample ring are where the sensors on the actual Galaxy Ring will be; Turn the sample ring so that the sensors are facing towards the palm of your handMAY DIFFER FROM REGULAR RING SIZES: Galaxy Ring sizes may be different from regular ring sizes, so find the right fit with the Sizing Kit and follow the instructions provided; Galaxy Ring sizes range from 5-13 and there are no half sizes