Material: These templates are made of acrylic material, sturdy and durable, the products are packed in a carton box to avoid transportation damage. Size: There are 3 different sizes in a package, thickness is about 2.5mm, please refer to the pictures for detailed inside and outside dimensions, suitable for most common sticky notes. Crafting Tools: These guides are designed for easy placement of cardboard covers when making notebook covers, small planers, etc. Wide Usage: This tool guide will help you to make your own perfect note book or mini book with whole pieces of sticky notes, the fixed template is perfect for beginners. Specially Gift: You can use this template to make a unique note book for your loved ones, family members or friends that they will never forget.