3D NIMBUS Floating Frame, Shadow Box, Display Case, Box 4&rdquo;x 4&rdquo; x 1" Silicone Membrane holds object in place  3D Object seems to float in the air - like magic Nothing is glued, stapled, pinned, or clamped Inside Measurements 4x 4x 1" Outside Measurements 5 1/8"x 5 1/8x 1 3/8" Hinged Frame with Magnetic Closure