Island Bamboo 23 By 18-Inch Encinitas Professional Butcher Block Encinitas Butcher Block cutting board and Serving Tray is made of Bamboo which has natural Antimicrobial Properties, Bamboo is bonded with food grade glue Food safe material All natural Bamboo cutting boards have many good properties, they are beautiful pieces made to compliment your kitchen, so you don't have to put them away. They are harder than most cutting boards, so they will last a very long time. Bamboo's natural antimicrobial properties kill off bacteria.