When I had my shop I sold these. They are Search & Rescue golf ball retrievers. They aren't particularly cheap
but they are a very good retriever. They used to have a more or less lifetime warranty. If something went wrong with
yours you just called an 800 number, then sent it in. They would repair it free and ship it back to you free shipping.
The company has since been sold and is now owned by Dynamic Brands, the same company who owns Bag Boy. I
don't think the warranty is as good anymore but they are still a good retriever. You can get them in lengths from
9' to 24' in 3' jumps, 9', 12' 15', etc. They can be found at various places, including amazon.