Save your arm.  It seemed like these things were up to $25 for years, but for $7 or $8 this is a no brainer.  As my puppy went longer and farther with fetching the ball, I was starting to hurt my arm.  This is a nice, simple product and easy to use.  I think Fergus would only give it 3 stars because she just wasn't ready for it, but she'll come around.