#2 Rehab bucket hand trainer
Bucket trainer for rehabilitation
After many years of computer mouse usage and working from home (WFH) bad ergonomics , I've found necessary to have hand training exercises.
Bucket training is well known amongst rock-climbers, martial art practicioners, musical instrument players , and all kind of sports.
I did learn a bucket method from reading many years before a book of Master Jakab , internationally famous founder of martial arts. https://projectswordtoys.blogspot.com/2016/04/gimme-bruce-lees-crown-lajos-jakab.html
He used a bucket of maize grain , which is a hard corn used for feeding animals. Such this corn have good properties and also cheap for bucket training . Alternative is sand or rice . Sand have abrasive properties and more difficult getting a clean sand . That would be Corundum or crystalline form of aluminium oxide.
Here some photos and video of my bucket :
https://dai.ly/k5yK7SDEdxqpYlyRKJA