crayon storage boxes are made of high quality plastic for durable use; Eco-friendly, not easy to break, translucent, stackable, keep your desk organized and neat.Quick-snap lid and easy stack design is very practical to prevent your items falling out, enough clear to identify supplies easily that you can find everything easily.Perfect for storing crayons, chalks, pens, markers, paper clips, push pins, rubber bands, erasers, sharpeners, small binder clips, school office supplies and art craft sewing tools.