Our high-quality therapy putty comes in 4 reresistances consistent with industry standards! Silicone-based putty is ideal for any rehabilitation program and maintains its consistency, unlike so many putties on the market today. Special Supplies Therapy Putty is guaranteed to maintain its consistency for one year from the date you receive it. Color-coding allows easy resistance identification and 4 levels of resistance allow you great flexibility in rehabilitation solutions. Therapy Putty is unscented and non-toxic. Not made with natural rubber latex. The Personal Therapy Putty Kit contains one 3-oz. container of each of the following putties: Yellow, Red, Green and Blue.