Apollo Cardboard Transparency Mounting Frame - 12.25 x 10.12 Frame - 11 x 8.5 Insert - White

Use Transparency Mounting Frames to block out distracting light from around borders. Prevent curling. Make handling and filing easier. Use with 8 1/2" x 11" transparencies. 7 1/2" x 9 3/4" aperture.