Description Gel squeeze ball hand exercisers can be used for grip strength, dexterity, mobility, and fine and gross motor skills. Heat or chill for use in hot or cold therapy. Available in 6 color-coded resistance levels. Each level (firmness) available in circular or egg shape. Balls can withstand temperatures ranging from -76 degrees Fahrenheit to 167 degrees Fahrenheit. Quantity: 1 Size: Approximately 3" D Color: Tan, Yellow, Red, Green, Blue, and Black Shape: Standard Circular or Large Cylindrical Material: Gel Manufacturer: Fabrication Enterprises Inc. Brand: CanDoå¨ Indications: Hand exerciser ball for improving grip strength, dexterity, mobility and fine, and gross motor skills. Care & Cleaning: Wipe clean as needed with a damp cloth, mild cleanser & air dry.