Why are there small type pin holes in platform recesses?

Our platforms are designed with recessed slotted openings that skin over with a thin layer of plastic during the manufacturing process. This adds strength to platform. There can be multiple small holes that are visible inside this skinned over recess. This is normal and does not compromise strength or durability of the platform. This also allows for water drainage through the small holes. We do not trim or clean out these recessed holes in order prevent any horizontal cracks between the mold halves that form the part.