Child safe

After looking at children's books that have the same style as the cards I am planning on designing, I have seen a few things that I will need to take into consideration to make sure the cards are suitable to give to young children I will also need to take a few fundamental rules of card design, these together have given we a list of must be's: 

• Durable- these cards will be given to children  meaning there is a high chance that they will be pulled, pushed and chewed. These cards will need to be able to stay together to prevent any harm to the child.
  
• Wipeable- These cards might end up will dribble, food or much worse on them, for this reason they will need to have a wipeable surface so that they can stay clean.
  
• No sharp or pointed corners- As these cards will go to children, they need to be safe and not cause any harm to the child if left unsupervised.
  
• No tearable or easily perishable materials- No materials that can be pulled off or apart should be used as they can become a choking hazard to the child.
  
• Writable- Being a card there needs to be a section to write in, there would be no point in sending it otherwise
  
• Light weight- This is to keep postage price down and also so that if dropped the child will not be hurt by the weight of the cards.
  
• Interesting- The point of the cards  is to stimulate the child, for this reason they need to have an interesting pattern and textures inside, the card also needs to appeal to the buyer so appearance is everything.