Crown Hand Exercise Putty is premium quality putty used in rehabilitation, occupational and physical therapy for strengthening hands, fingers, forearm and grip along with stress and anxiety relief. Used in clinics, schools, offices, or taken on the go. </br> </br> Crown putty is the same professional putty sold nationally under some of the top putty brands. We have been manufacturing putty for over 30 years. </br> </br> We can assure you the highest quality, because we control the quality from start to finish. Crown putty is safe, Nontoxic, Gluten Free, Latex Free, No BPA, and is unscented; putty is adjusted to not be sticky or greasy to touch and feel. </br> </br> Four resistance levels allows you to select the correct starting resistance and increase resistance at your own pace , providing flexibility in any rehabilitation program. Each resistance level and color is the standard resistance range expected by professionals. Putty resistance remains stable and constant for dependable treatment results. </br> </br> Each set includes one 3oz. container of each of 4 resistance levels: </br> </br> Soft Level 2 Yellow, </br> Medium Soft Level 3, Red, </br> Medium Level 4 Green, </br> Firm Level 5 Blue </br> </br> We are proud that our putty is made in USA. We manufacture the exercise putty to exacting standards, as the manufacture we control the quality from start to finish.