allstarco 25x18mm gold topaz ch16 flat back sew on oval beads acrylic rhinestones sewing plastic gems with holes for jewelry, clothes, garment embelishments, shoes, cosplays, crafts 20 pieces kraftgenius allstarco gold topaz flat back sew on oval acrylic rhinestone beads are 18x25mm or 1/16" x 1" in diameter. these jewels have 2 holes for sewing that are about 1mm in diamater. perfect for jewelry making, fabric embellishments, garments, costume making, cosplays, clothes and shoes. all of these gems have silver flat back foil (non see through) except black that is opaque (full black covered).