Notch makes these Throw Weights using 1,000-denier Cordura® material. They reinforce them with extra stitching and attach a welded ring. Each weight has a high-contrast color pattern based on its size. Choose your desired size below. The high-contrast color patterns of these weights do not exist anywhere in nature. Notch?s proprietary design stands out against any background including leaves, sky, and dirt. This unique coloring makes them extremely difficult to lose on the work site. Notch designs these Throw Weights to hold up to any job. The durable fabric and reinforced stitching make them nearly indestructible. Notch backs this with a no-questions-asked lifetime guarantee. You break it, and Notch will replace it!