This product is a set of approximately 37 spinner blades for freshwater fishing, specifically targeting crappie and walleye. The blades come in assorted colors and have an item diameter as shown in the pictures. They are designed as spinner parts and are not a custom bundle. The product is made in the United States and is not modified. It is sold as a pack of 37 blades and is categorized under sporting goods, fishing, baits, lures, and flies, and tackle craft.