Heddon One Knocker Spook Topwater Hard Bait - Thumps bass with a sound like no other topwater bait. The single tungsten rattle contained in a sound - intensifying chamber produces a loud thump that draws fish from long distances. Its positioning within the body of the lure makes walking the dog easier than ever. Single tungsten rattle contained in a sound-intensifying chamber produces a loud thumb that draws fish from long distances Positioning within the body of the lure makes walking-the-dog easier than ever Mustad® Triple Grip hooks