If your ArcFlat block has any dents at the corners, please take pictures of the damage and submit your pictures to support@langmuirsystems.com
Dents at the corners are not a common defect for ArcFlats, and almost always occur during shipping. Dents at the corners might make it difficult to bolt multiple ArcFlat blocks together. We will address the matter directly with you as soon as we can see the extent of the damage.