Hot Spot Roller Baiters are trolling bait holders commonly used for salmon fishing. They are extremely easy to use and anglers can rig them with their own hook of choice. The Roller Baiters are known to spin herring really well and will keep a whole bait in good shape all day if you don't want to change them out. However, when the time comes, changing baits is about a 5 second job. We offer the Hot Spot Roller Baiter Heads in Sz #2 (4-5" Baits).