Hot and Cold Therapy Packs 7.5″ x 5″ by CABEA for Ice and Heat Therapy. Covered in soft nylon, cloth fabric. High-quality packs are reusable and washable. Contain gel for soft, flexible maneuvering around the affected area of pain or swelling. Freezer and Microwave safe. Perfect for use with vulvar varicosities, pubic symphysis dysfunction (spd), edema, episiotomy, cesarean section (c-section) wound, swelling, sore muscles Size:7.5″ x 5″ For therapy: freeze or place in the refrigerator for 2 hours before use. For Heat Therapy: microwave for 30 seconds or until the desired temperature Hand-washed with mild soap or detergent. Cool Pack Indicated uses: reduce swelling of Vulvar Varicosities reduce pain and swelling pubic symphysis dysfunction (spd) reduce pain and swelling of episiotomy reduce inflammation to strained muscles reduce inflammation to bruised muscles reduce swelling in the C-section wound area. Heat Pack Indicated uses: increase flexibility to stiff muscles, joints.