Additional Details ------------------------------ Product description: UMAB, the Ultimate Martial Arts Board, is the manufacturer of the best rebreakable martial arts board on the planet. Similar to the size and feel of a real wooden board. It is constructed of super tough nylon to provide unbeatable strength and durability. Each board consists of two identical halves that snap together easily with our unique, patented hinge. Available in 7 color-coded breaking strengths.