The Box is a modernist style, bold, a statement in solid distressed sterling with a beautiful polished blue kyanite that can fit right or left. NO adjustable, its size is a loose 7 1/2 and the wide band with bold  textures makes it comfortable to wear.
The hollow form -Prayer box- has textures and distress while the Kyanite's side holds a small loop in case you want to add a dangle -a trend nowadays- or a chain and ring to create a slave style piece.
-Sorry for the light in the video, had to make them with artificial light. :( -