Tiffen Overmats are for professional presentation for transparencies. When mounting, protect images using clear sleeves. For best presentation try Print File's specially design ShoSleeves. Sleeved transparencies are taped over window openings.
The black board is not manufactured from archival safe materials and is not recommended for long term storage
Use OverMats back to back for finished appearance
Available in multiple formats with the same outside dimensions for uniform presentation