Contains 2 B-Packs 6 x9 * Pain Areas: Arm Back Shin Shoulder * Convenient size for many uses either by itself or to rotate as a refill in our wrap systems for continuous uninterrupted cold therapy * Refill for Model 530 540 and 550 (10078B C D) * Packs are flexible at a normal freezing temperature * Features Fully Flexible: Molds around painful areas when frozen * Low Freezing Point: Packs are flexible at a normal freezing temperature* Stays Colder Longer: Maintains temperature longer for maximum therapeutic benefit * Quality Materials: Non-toxic fill inside latex-free vinyl * Durability: Can be used several times a day * Size : 6 x 9 x 1.5 (2 Packs Included) *