Sturdy construction to withstand years of collecting 2.5" (width) x 11.5" (height) Keeps stamp collection protected from dirt, dents, and scratches Protect your Mystic American Heirloom Collection with matching Mystic Slipcase. Please note, this slipcover fits over binder ES390 of the American Heirloom Album. It WILL NOT fit binder ES397 of Mystic's Premium Heirloom or hingeless albums. Keep your American Heirloom stamp album safe from dirt, dents, scratches and other harm with this protective slipcase. Sturdy design matches and fits right over your standard American Heirloom binder.