Box Elder Burl Block BEBB-198 (Stabilized)Box elder burl is a unique and highly sought after wood material. Burls are abnormal growths that occur on various tree species, including the box elder tree. They are formed when the tree experiences some sort of stress or injury, causing the wood grain to grow in a distorted and often beautiful pattern. Box elder burls are known for their vibrant and striking colors, which can range from reddish pink to light yellow. The swirling grain patterns