Diploma Covers are the ideal way to protect and preserve achievement certificates and diplomas. Slits in each corner conveniently hold landscape 11" x 8.5" certificates. Choose the optional clear acetate sheet for further protection. The smooth vinyl material can be heat stamped with the institution or organization logo. Dimensions: OPEN: 23-1/4" x 9-1/8"; CLOSED: 11-5/8" x 9-1/8". Made in the USA. No tariffs apply.