I got these used worms in a bulk sale. They're Bait Breath's Bys Power Straight. They have a unique, sour smell. The colors are Skirponon, Watermelon Seed, and Watermelon Purple. The smaller ones are 6 inches, and the larger ones are 7 inches. They have a good weight to them, so you can use them as a substitute for a Swamp Crawler.