A jelly roll bundle of fabric typically has 40 strips, but the number can also vary. Other fabric companies might sell jelly rolls with fewer or more strips per bundle. Moda Fabrics coined the term “jelly roll” to refer to a rolled-up bundle of fabric strips. The jelly roll from Moda fabrics has 40 pre-cut fabric strips in various coordinating colors and prints. The jelly rolls are packaged in a rolled-up bundle that looks like a jelly roll pastry, and many quilters like sweets, thus the name. The pre-cut fabric strips are made of high-quality quilting cotton and are 2.5 inches wide. The strips are mostly cut from standard-size bolts, measuring around 44 – 45 inches long. Most jelly rolls produced have 40 strips in a bundle, but they are also available in a pile of 20 strips called Junior Jelly Roll. Fabrics used for the Junior Jelly Rolls are the ones with minimal collections and many of the Bella Solids. A single jelly roll with 40 strips has 2.75 yards of fabric. But if you lay the strips from end to end, you will get approximately 46.5 yards long of cloth. Different fabric companies, aside from Moda Fabrics, such as Free Spirit, Robert Kaufman Fabrics, Riley Blake, Island Batik, Hoffman Fabrics, and Wilmington Prints, sell jelly rolls. These fabric companies also use different terms to call their pre-cut fabric bundles. Design Roll, Roll Up, Rolie Polie, Strip Sets, Bali Pop, and 40 Karat Gems, respectively. While Moda Fabrics has 40 strips in each Jelly Roll, some manufacturers may include fewer or more strips in a bundle. When making a quilt, you must consider the intricacy of your design, as it may need more strips than what is included in your jelly roll.