Handy home made hand/finger strengthener to counterbalance gripping exercises

hey everyone, I have been reading up on how to strengthen hand grip and read how we overuse the muscles used in gripping motions and not the muscles that act in countermovements. There's a cool hand strengthening device to help but I'm broke with a capital "B" so I made this little guy to get me through until I can afford a sturdier, better made version (called the hand X-band). And it works! It's amazing how quickly the hand tires out, and you can feel it in the forearm as well. it won't last long but I got plenty of rubber bands until I can get the real deal :) Hope someone else finds this useful