With so many papers available choosing a size that fits all is almost impossible, Regular Size Rolling Papers are the most popular size that are used worldwide. A Regular size paper is 70x32mm although this can and does vary between the different brands. Regular Rolling Papers can and do get confused with 1 ¼ rolling papers which are slightly larger at 78x44mm and are very popular in the USA. in Europe the Regulars tend to be used more. Again, the sizes can and do vary slightly depending on what brand of paper you choose. Both size papers are available in different thicknesses and materials and all major smoking brands tend to carry all the different options, including Smoking and Zig Zag.