Ikohe has developed a new bracelet bangle gauge for quickly measuring the inside diameter and circumference of round bangle bracelets. Simply place the bracelet on the gauge and read the size like you would with a ring mandrel. Simple but beautifully designed, the Ikohe True Size Bracelet Bangle Gauge measures 3-1/4" in diameter by 4-3/4" tall.
I love this ...it has worked out well since I struggle with making sure I am making correct bangle size. The only thing that would make it better is for it to be a little larger as I make Oversized bangles too. Otherwise it is a great addition.