Watercolor Postcard Tins are ideal for creating tactile and visually unique pieces in miniature form. The round edged postcards have an address field printed on the back, ideal for on-the-go watercolor, plein air painters and urban sketch artists. Use the rough textured, natural toned paper with pencil, brush and pen for both wet and dry painting techniques. Sleek metal box allows for safe transport.Details: Natural toned paper 4.1'' x 5.8'' 105 lb. (230 gsm) 30 sheets Rough surface For use with pencil, brush, pen, wet & dry painting