Labels and shields are available for the front of the tray, the E-Z Peel Labelling feature on the back of the trays allow any adhesive labels to be removable.Personalize storage with optional Inserts, Ticket Windows, Lids, and File Frame Inserts.Strength & Resistance: Tote Trays are certified to British Standard BS: 5873 [PART 4 (1998)] Certified exceeding all four BS 5873 Certification Requirements.Tote Trays are the essential component to an evolving self-organized environment.