I have been using this for the past 3 weeks and is a great product for forearms and wrist exercise. This is an instant hit at my Gym as well.
Only one thing to make this product even better - Can be hard to alter as no plus/minus signs - by adding these it will stop me guess which way is tighter/looser! Then this would be a fantastic five star product.
Good to strengthen hands - well made/robust
Can be hard to alter as no plus/minus signs