Quantity: Package of 30 or Package of 180 Size: 3.8mm-4mm diameter Setting: Silver Plate Materials: Brass and Glass Type of Rhinestone: Pointed Back - chatonThis listing is for Chaton Montees which are pointed back rhinestones set into sew on settings with 4 holes; one on each side of the square. This is not a Rose Montee. Those are flat back rhinestones with a "channel" or cross shaped setting in the back. Please make sure you are selecting the correct type of rhinestone you need when purchasing.This is our favorite size to use when working rhinestones into Chainmaille. These are also a fabulous size for seed bead work, soldering projects and other jewelry making mediums. Warning! Chainmaille items made in these sizes are extremely small. You should have good eye sight and use lighting and magnifying tools. How to mount a Chaton Montee Bead onto a Jump Ring