Our Wood Slice Candle Coaster is the perfect protective accent to go beneath any of our jar candles. The appearance of the wood may vary due to natural variances. Our wood slices are pure natural pine slices, chemical-free, and they’re only processed through cutting, grinding, and drying in the shade. There is NO paint, sealant or other anti-corrosion finishes applied, so it’s normal for some of the wood bark to naturally fall off. Since these wood slices are all natural some may have imperfections, but these are just the characteristics of the natural wood.