Made by natural Bamboo which are an Eco-friendly and renewable material, resistant to moisture and 16% harder than maple wood. With expandable function allow you to extend from 5 compartments to 7 compartments. Keeps flatware and kitchen gadgets net and organized in the seven compartments. 7 compartments size: 3 -- 8.5" x 2.25", 1 -- 11.75" x 2.25", 2 -- 12" x 3" and 1 -- 7" x 3". Overall size: 11.5" --- 16.5" W x 13.5" D x 2" H