Hey gang .. just created this training idea although its been something I've been noodling on for quite some time … an easy way to practice and teach correct arm action in the golf swing / throw. It's also a fantastic way to practice correct hip rotation while staying in posture without lifting up. ( the number one reason why golfers top or hit shots thin) 

And a method that's inexpensive , handy to do indoors, and of course really effective.. Check out the video below and let me know if you have any questions ? .. thx 

P.S.  The electronics store name that I couldn't remember in the video is Factory Direct. I bought it there for $17 (  www.factorydirect.ca/kids-punching-ball-bag-wboxing-gloves ) but if you can't find it there they are also available on Amazon.ca although a little more costly ($50) https://www.amazon.ca/dp/B07JCRD875

Even if you had to pay $50 ( a dozen golf balls now a days) it will greatly improve your game over the winter.  

 Get to work! ;)