Budget range of elegant, yet hard-to-find, Black, White and Natural colours, 3-Dimensional, Square Photo Frames and Square Picture Frames with standard-size photo window mats and picture mats. 3-D frames are used by many customers to incorporate, suitable, 3-d objects inside the frames. All the Unigift brand 3-D frames have removable spacers and window mats for enhanced versatility and usability. To fit square-sized artwork inside the frame, just remove or discard the supplied mat. Click on each product to find out the frame sizes and the mat sizes.