Hi Alan,I'm so sorry for the late reply, I'm not surer how we missed your comment. I'm sure it's probably too late, however they're Bluestone coping tiles with a 75mm drop face. These are available in many different sizes, however i'd be guessing that these were 1000x400mm.
Where can we find the best flatpack kitchens?
Character Villa with bad extension - should the extension go?
Feedback on floor plan for new build
Help! We need floor plan advice for our family home