Food grade silicone, and exports to the EU lid tea cup with silicone appliances production line. Absolute food grade, with some baby pacifiers material is no different, can be assured.
Material--The grippers are made from premium silicone, the high quality item can strenghten your muscle.
Sized especially for adult hands, to maximize the benefits of the exercise and ensure a challenging, yet safe experience.
These rings are great for training athletes, and giving their performance a positive boost.
Fit for men and women.