Consider the area of printing or engraving while making a purchase. For example, if you are looking for small leather keychain, You shouldn't be putting more than 2-3 sentences(15-20 words max). However, for inside of a wallet, you can fit up to 50 words. Also, you cannot fit more than just a name on Name Necklace or Nursery sign. Please keep in mind, the more you text you want on your item, the smaller and smaller font you will get.