The 66fit hand therapy putty is a soft bleed-proof, nontoxic, clean, non-oily, putty that is colour coded for progressive resistance exercises.FeaturesMaterial: SiliconWeight: 85g/3ozColour: YellowFirmness: SoftDescription*** Please note this is a 85 gram tub and is recommended for all hand sizes. It is ideal for clinics and practices where the putty can be divided into smaller 85gms sizes for individual patient use ***Designed to meet a wide range of hand/arm strengthening needs, putty can be squeezed, stretches, twisted or pinched. Great for carpal tunnel syndrome exercises.Each colour coded hand putty comes in a plastic sealable tub.