Material: The cake letter embossing kit is made of sturdy food grade plastic. Size: Our capital letter stamps are 6mm tall with the lower case letters and punctuation marks proportionately smaller. You can create your personalized message with ease on many different cookie shapes and sizes. Easy to use: just remove the mini stamps from the tips by snapping them together and slide them onto the included holder. You are then ready to stamp your personalized cookies and treats with ease. You can also use the small stamps alone to stamp letters, numbers or punctuation marks. Multi-purpose: use your stamps to personalize your messages not only on cookies, fondant, marzipan and gum paste , but also for stamping clay and other ceramics. With 150 different stamps included, you are sure to create the beautiful message you desire. Both lowercase and uppercase letters are included: forget about using only uppercase letters to stamp your shortbread cookies; we've included both so you can choose. Includes dollar-shaped punctuation stamp, hash tag, ampersand and ampersand stamp and more