CleverDelights 20 Heart Glass Cabochons - 1 inch - 25mm - Clear Dome Magnifying Cabs - 1" Dimensions: 1"W x 15/16"L x 1/4"H (25mmx24mmx6mm) Dome Height: 6mm (Approximately) Flat On One Side - Domed on the Other Edges are Polished Smooth So They Are Not Sharp Top-quality CleverDelights-Brand Glass