7.5 in x 4.5 in (19.1 cm x 11.4 cm). Contains (1) TheraPearl Sports Pack. A new degree of relief. Color changing. Pearls change color when: hot or cold. TheraPearl combines the healing power of hot & cold therapy into one convenient pack. Enjoy extraordinary relief from your everyday aches & pains and feel the optimal therapeutic benefit as our Pearl Technology conforms to your body. Doctor designed. Conforms to the body. Soothing relief for pain + swelling. TheraPearl ColorSmart pearls change color when they achieve targeted. Hot or cold temperature. Freeze + microwave. Reusable. Non-toxic. TheraPearl.com. Made in China.