Silver - 14pc Smooth Acrylic Zebra Flatback Rounded Square Rhinestones (16mmx16mm) Package of 14 acrylic rhinestones. This is the glue-on type. Rhinestones measure 5/8"x5/8" (16mmx16mm) Great for embellishing projects, hair bows, scrapbooks, and more! Smooth top, rounded square shape.