OULII Blank Heart Wood Slices Discs Wedding Christmas Ornaments, Pack of 100, 20mm Color: Wood color. Material: Rosewood. Size: approx. 20mm. Thickness: approx. 3mm. These natural wooden discs are surrounded with bark. Both sides are sanded to a smooth finish ready to paint, decorate, stain, or simply leave plain. Ideal for card making, embellishments, scrap booking, decoupage, sign making and many other art and craft projects.