he is wearing the black double bangle, not sure if still available now. it faded a bit already but still looks nice considering he wears it all the time even to the beach.
don't worry though, if ever it gets faded or discolored, you could go to a chariol boutique, present your item to the sales associate and ask them to "repaint / recoat" the item. they will then bring it to one of their service centers (in hongkong i think) and from there they will give you a quotation of how much it would cost. If you don't like the price you can just ask them to ship it back.
bf thought of having it "repainted/recoated" but it takes around 6months for the whole process (i guess they pool items together first to minimize on shipping costs) so he did not push through with it.