These pennies you'll receive are called business strikes.
That means that they are nice but, may have minor scratches or other minor problems and
were meant for general distribution into the public and for most part are acceptable.
If your looking for a set of these pennies in immaculate condition
May I suggest a purchase of a United States Mint Set/Proof Set and/or graded coins.
The cost is around $25.00 to $35.00 and/or more for graded ones.