Tote Trays are the essential component to an evolving self-organized environment. This diversity keeps an environment de-cluttered, allowing for highly mobile educational activities. Bin, Tray, Tote, Clear, High Impact Polystyrene, 18.Shatterproof Construction: Crystal Line Tote Trays injected moulded with engineering grade ABS, Acrylonitrile Butadiene Styrene.