Bamboo is a renewable resource that grows quickly and sequesters carbon, unlike steel which produces carbon. The Collaboration Whiteboard Slate Kit is an optional accessory to add to the Collaboration Whiteboard Base Model and includes 4 magnetic whiteboard slates with an 11" (28 cm) x 11" (28 cm) writing surface and brackets to attach the slates to the board for even more opportunities to brainstorm and create. Students can use these for individual or group work.