Caddy mounts easily to any board or surface with adhesive strips or magnetic strip (both are included). Made from 90% recycled material (25% post-consumer). The low-odor, non-toxic markers are perfect for school and home use. Markers easily erase from whiteboards, glass, and most non-porous surfaces. Set includes a durable organizer, one whiteboard eraser, and four markers, one each of black, blue, green, and red. Made in the USA Expo Dry Erase Set, Chisel Tip, 5-Piece with Recycled Material Marker Caddy, Assorted Colors.