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Senwo Portable Reusable Instant Click Warm Heat Hot Cold Gel Pack
Size, length, color, material, shape can be customized.
Hot Gel Pack Reusable Heat Pads with Metal Disc for One Click Heating – Pain-Relieving, Instant Hot Packs for Back, Neck, Palm, and Shoulder.
Sport & Back Hot Pack – Pain Relief, Reusable for Neck, Shoulders & Joint Pain, Ease to Use, Click to Activate, Advanced Hot Therapy – Muscle Recovery, for Knee, Cramps, Post & Pre Workout.