This ombre diamond art coaster kit comes with four different acrylic canvas coaster designs. The kit comes with everything you need to add an aesthetic, functional pop of color to your home. Details: Ombre 4" x 4" (10.16cm x 10.16cm) individual coaster size Makes 4 pieces Full coverage Conforms to ASTM D-4236 Contents: 30 pre-sorted diamond art gem colors 4 pre-printed coasters 4 cork backings 1 stylus 1 stylus grip cover 1 craft tray 1 wax caddy 1 instruction sheet