A Time-Tested Catfish Bait That Actually Works Generations of catfish anglers have sworn by soap blocks — and for good reason. These pre-cut 1/2" blocks dissolve slowly in the water, releasing a scent trail that draws catfish in from a distance. Whether you're running a trot line overnight or fishing a lazy river bend at dusk, soap blocks are a reliable, mess-free option that gets the job done. What's in the Pack 40 pre-cut 1/2" soap blocks per pack Center hole for easy rigging No refrigeration needed — shelf-stable and ready to fish How to Use Thread the block directly onto your hook through the center hole. For trot lines, simply loop your line through. The block will hold firm on the hook while slowly releasing scent in the current — exactly what catfish are looking for.