Tiffany & Co. heavy 18k yellow gold twist knox bangle bracelet. 
Designed by Angela Cummings for Tiffany & Co, circa 2000-2010's
Polish finished.
Size 7.75" waist, 2 5/8" x 2 3/16" inner measurement, front 1/2" wide, band 5.0mm.
Weight 40.0gm
Hallmark Tiffany & Co."©1980 Tiffany & Co. 18k Cummings".