Do these things actually hold alot of weight?
Not a lot of info in your question. What are you asking about exactly?
are you talking about those compact little fishing rods about the size of a pen?
Sport Fishing magazine
Is this what you are talking about? I would think they might work for small fresh water trout and bass.
Penn Reels is a name you can trust. A rival of Shimano, Penn Reels have been dominating the fishing reel business since 1932. Penn Reels (officially Penn Fishing Tackle Company) was founded by Otto Henze and has been dedicated to producing the finest fishing reels for over 70 years. Anglers all over the world swear by their Penn Reels. Choosing the right fishing reel can be tough. Experienced fishermen choose Penn Reels because of their superiour quality and performance in addition to their reasonable price.