Using these dice is super easy. Just grab the dice you need for your roll and give them a good shake in your hand or a dice cup. Then, roll them on a flat surface. For the best results, use a soft, non - scratchy surface like a felt mat. When it comes to maintenance, keep them away from sharp objects that could scratch the resin. You can clean them with a soft, damp cloth if they get dirty. Avoid exposing them to extreme heat or cold, as this could damage the resin or the penguin inclusions. With proper care, these dice will last you a long time and keep adding fun to your games.