We needed a 3 inch marble threshold in white to fit in an unusual area - not standard size. Apparently 3 inches is not used for door thresholds - only 2, 4, 5 and 6 inches are available at brick and morter big box stores. Whole Tiles is the only company where we found the correct size as a custom order. The threshold arrived quicker than expected, especially considering the low shipping cost. I was so worried it would arrive broken or chipped since it was coming from East coast and we are in LA, CA. It was perfect. It fit exactly how we needed, the color was solid white which matched the existing thresholds and we were able to finish the job.