Dimensions: Inside across is 2" 9/16 in. diameter - outside across is 3" 1/8 in. diameter - width is 3/8 in. wide (6.5 x 7.9 x 1 cm).
These bracelets have tested positive for vintage traditional Bakelite : yellow residue on the Q-tip when using 409 and Simichrome polish + distinctive vintage Bakelite aroma when using warm running water or rubbing test.