Add a custom border to important documents. New and improved clarity keeps your laminated documents looking clean and crisp. HeatSeal´┐Ż pouches allow you to preserve the details and color of all your important items. 3/8" black frame for letter size documents. 9-1/4 x 11-3/4. Length: 11 3/4 in; Width: 9 1/4 in; For Use With: N/A; Thickness/Gauge: 5.0 mil.