This exercise can be of benefit to martial artists and rounders players too. Rounders players will increase their batting speed and batting power with this exercise.
I did my indoors key throw in the video above. The throw would have been better had it been done in the outdoors as I could have thrown the key more forcefully in that situation.
Here's my most recent indoors Nerf howler ball throw. As in my original video, I held the ball above my shoulder and then I threw the ball without wide telegraphing motions.
In this video you'll see me throwing the thinner version of Yellow Bolt indoors. I am working on throwing the Yellow Bolt without wide telegraphing hand movements.