Hokkyoku Shirokuma-do Sling Kyuttomee! I've used it about 10 times for practice, but I couldn't get the hang of it, so I haven't actually used it. I don't think there's any stretching. I heard the rings can crack with a lot of use, but there are no cracks. It's separated into yellow and green, making it easy to see when tying or loosening, so it's a good pattern for beginners! It's originally expensive, so it's recommended as a used item to get started! Cotton sling with a yellow and gray striped design. - Color: Yellow and gray stripes - Brand: Kyuttomee! - Material: Cotton - Ring Material: Plastic - Accessories: Instruction manual Thank you for viewing.