Select your custom image from your hard drive - Choose one image for a matched pair or two images if you want a different image on each slipmat (please make sure that your files are named something unique and contain no spaces - use underscores_like_this or dashes-like-this). We can only accept the following file formats: jpg, png, or gif - please convert tiff, bmp or psd files to high quality jpg or png before uploading. Once you have selected your files click on the "Upload" button.