A hand-held foam exercise ball for squeezing that helps develops isolated finger strength, flexibility, and coordination for rehabilitation of carpal tunnel, arthritis, stroke, fractures, tendon injury, nerve lacerations, tennis elbow and more.The ball comes with exercise pamphlet and is available in three different sizes for small, medium, and large hands, and 5 different resistances. Each ball has finger and thumb positioning indents and markings for both left and right-handed use. Sold Separately or as a set. Each set includes all 5 resistances.Quantity: Single or SetSize: Small, Medium or LargeColor: Yellow, Red, Green, Blue or Black***NOTE: Color corresponds with resistance levelMaterial: FoamBrand: CanDoManufacturer: Fabrication EnterprisesIndications: Helps develop isolated finger strength, flexibility, and coordination for rehabilitation of carpal tunnel, arthritis, stroke, fractures, tendon injury, nerve lacerations, tennis elbow and moreOptions:SmallDimensions: 3" x 3" x 3"Yellow - X-Light (10-1970) UPC: 714905026095Red - Light (10-1971) UPC: 714905026101Green - Medium (10-1972) UPC: 714905026118Blue - Heavy (10-1973) UPC: 714905026125Black - X-Heavy (10-1974) UPC: 714905026132Small Set (10-1975-Set) UPC: 714905026149Small Set w/ Rack (10-1976-Setw/Rack) UPC: 714905026156MediumDimensions: 3.2" x 3.2" x 3.2"Yellow - X-Light (10-1980) UPC: 714905026163Red - Light (10-1981) UPC: 714905026170Green - Medium (10-1982) UPC: 714905026187Blue - Heavy (10-1983) UPC: 714905026194Black - X-Heavy (10-1984) UPC: 714905026200Medium Set (10-1985-Set) UPC: 714905026217Medium Set w/ Rack (10-1986-Setw/Rack) UPC: 714905026224LargeDimensions: 3.5" x 3.5" x 3.5"Yellow - X-Light (10-1990) UPC: 714905026231Red - Light (10-1991) UPC: 714905026248Green - Medium (10-1992) UPC: 714905026255Blue - Heavy (10-1993) UPC: 714905026262Black - X-Heavy (10-1994) UPC: 714905026279Large Set (10-1995-Set) UPC: 714905026286Large Set w/ Rack (10-1996-Setw/Rack) UPC: 714905026293