Each sheet is individually made by hand and eco friendly. The handmade paper is made from 100% recycled cotton rag, is acid free, chlorine free, and bleach free. Each sheet of handmade paper is unique and will differ slightly in some form, therefore the size is approximate. Would also work wonderful for calligraphy. Use these for a variety of uses and occasions. Was able to print from my home printer (HP Officejet 4650) but we suggest ordering samples for testing. We have the following sizes in stock, 2.5x3.5", 3.25x4.75", 4x6" and 5x7". Also coming soon in black. If you are looking for custom color, size or weight contact us with your requirements.