Trailers are aptly named because they trail behind your bass jigs. Bass jigs usually have a living rubber or a silicone skirt. They can be effective on their own but they trully shine when you add a trailer to them. The trailer is usually threaded onto the hook and is kept in place by a keeper barb underneath the jig' s skirt. In the past, trailers were usually made of pork rind and were nicknamed pork frogs. Hence the name, jig and pig. Nowadays, plastic trailers are the norm. They may include chunks, craws, creature baits and even lizards. A plastic chunk is a type of trailer that resembles a pork frog and they are probably the most widely used trailer today.