Designed to take our 12 mm Rivolis. Lots of potential for some great designs! Glue stone in place with E6000 or Hypotube cement. Just a little dab will do! This is the Tierracast Black - a sort of Metal Noir - black like iron, but shiny.
15mm x 18.7mm Hole size is approx. loop ID is 2.25. By the each.