The measurements of the bangles are made at 10mm x 150mm 
If you would require a different size, please send a message via our contact form before purchasing. 
The best way to measure your size is to get a  piece of string and wrap it around your wrist. Measure where the two pieces overlap then mark. Lay the string on a ruler. As the bangle has an opening, we advise the gap to be no bigger than 20mm for comfort