Keep Safety Data Sheets (SDS) secure and accessible with this strong, heavy-duty binder that features thicker front and back panels designed for extended use. Preprinted SDS cover lets employees find safety storage. Wider front and back binder panels fully cover standard dividers and sheet protectors. Pages lie flat with back-mounted rings. The 1-1/2" binder holds up to 400 letter-size documents. Interior pockets offer extra storage.