Simply freeze it in the refrigerator for at least 1 hour to enjoy 20-30mins cold therapy; also, you can choose to heat it in the microwave for 40s to have a hot compress.
1 Pack Wrist Ice Pack Wrap Carpal Tunnel Relief Wrist Brace Gel Ice Pack
Large Sport Ice Pack 27cm x 13cm Adjustable Cold Therapy for Injury Recovery
Koolpak Reusable Hot & Cold Gel Pack – Large 16 × 28 cm Ice Pack for Injuries
Collar Tube Neck Cooler Ice Pack Reusable Neck Cooling Ring Ice Maker Gel Liquid
Kids Ice Pack, Hot or Cold Pack Gel Cooling Pad, Reusable for Injuries Medical Health,Swelling and Pain Relief, Tired Eyes, Child Injury, Headache, Sinus Relief (Set of 4)
Relaxdays Gel cool cold ice pack blood flow swelling relief soothing joint pain