I am very pleased with the finger weights. Even if the delivery took a long time, they meet my expectations fully. I was looking for something to mainly train my forearms and have these rings found a solution that I can apply anywhere. I have always in my pocket there when I walk to work (35 minutes) and go for a walk with my dog. A great invention, good material and: even though they are made of rubber, they are not hands after training also do not smell, and. I can recommend in good conscience.