This is by far the nicest mix of copper & sterling silver I have ever seen in a cuff. It is very solid & heavy. It is so solid it would be hard to adjust but probably can if you do so very slow, carfully & not very much. I have 2 of these. They are about the same size 5 1/2" inside measurement & 1 3/8" opening. The other 5 3/8" inside measurement & 1 1/2" opening. They weigh 44.5 grams & are 5/8" wide. They are signed WJ 925 & Copper.