Ocean Decorated Olive Wood Coasters. Size: 3.5 x 3.5 approximately. These are hand cut so size may vary a little. The coasters in the picture is for representation only. CARE INSTRUCTIONS: Wipe clean with a lightly damp cloth. This product is not dishwasher, microwave, or oven-safe. Hand wash only. Do not cut directly on the resin. Due to the nature of pour art, there may be slight imperfections. But then you will know this was not made by a machine, it was handmade with love. *All resin can eventually yellow over time.