Singles will vary from standard sized D20's, to 28mm "Chonky" D20's, or even D6's. Some may be finished, while others may be left in their Raw state. This will always be specified in the item description so you know which you are getting!
**Due to the handmade nature of this product, there will be minor flaws such as micro scratches, mold marks, or marks left over from the sprue. This will not affect the playability of your dice.