Our sink is 2 years old and I bought mats for the bottom to protect it , today I noticed a large chip in my sink beneath the mat on a side of the sink that has a drain rack over top so I am very dismayed and confused how it could be chipped especially if one side is seldom even used . I won't buy this type of material again as I feel it now looks cheap and I am afraid it will chip again . Since I don't use anything heavy or Shap enough to chip the sink I feel like I have to treat it extra delicately and it's become very inconvenient.