Ace Martial Arts Supply Martial Arts Taekwondo MMA Karate Rebreakable Board Set - Yellow Blue Red & Black 4 Re-breakable Breaking Boards Yellow (Kids): 9"x12"x3/8", Blue (Easy): 9"x12"x3/8", Red (Medium): 9"x12"x.5", Black (Advanced): 10"x13.5"x.5" Constructed of high impact molded plastic w/ rubber padding Designed for continued use