This coaster is hand-crafted out of small pieces of sustainably sourced rosewood too small to use for anything else and that would otherwise be destroyed. In conjunction with the matching placemat, this set adds texture and depth to any indoor or outdoor table setting. The coasters will protect your table and surfaces from heat and moisture. This piece measures 3.9 in x 3.9 in x .28 in and comes with 4 coasters per set. The mixture of tile sizes gives a unique table setting. We also carry placemats and table runners in this style and finish.