Chair rollers leave indentation on mat but dents eventually disappear. Label adhesive is impossible to remove. Do not know if it will easily crack because mat is new.
I only weigh 150 lb and I am using a executive chair with 5 rollers. the weight of the chair on the mat causes depressions making it difficult to roll around on the mat.
You have the best prices hands down. I had a problem finding this exact item (for use on carpets) from other "Office" suppliers. Your customer service is excellant.