The Rolling Insta Bag by Spark Innovations is a large, solid black reusable shopping bag with adjustable straps that can fit up to 4 bags of groceries. It features a rolling folding design, wheels for easy transport, and is foldable for convenient storage. The bag is easy to clean and care for with hand wash only instructions. With dimensions of 24 inches in length, 12 inches in height, and 12 inches in width, this versatile bag is perfect for all your shopping needs.