ThermaCare Back & Hip Wrap, Large/X-Large, Heat Therapy for Temporary Relief of Minor Muscular,Joint Aches & Pains, Air-Activated,Helps Rebuild Damaged Tissue&Accelerate Healing, Single 2 Count 1 Pack

• Air activated single use heat wrap, simply tear open pouch when ready to use
• Delivers heat deep into tissue, warming the muscle right where it hurts—to relax, soothe and unlock tight muscles
• Back pain therapy size large/x-large fits women's pant size 9 up to size 20, and men's pant size 35" to 47" waist
• Delivers 8 hours of continuous, therapeutic warmth and keeps relieving pain for an additional 8 hours after you take it off
• Heat wraps are drug free, discreet and portable, so you can use them when you're relaxing at home or on the go

Product Description ThermaCare heatwraps can work for up to 16 hours to bring you back pain Relief. That’s up to 8 hours of heat while you wear it, Plus 8 hours of Relief after you take it off. Ingredients Heat cells contain activated charcoal, iron powder, sodium chloride, sodium thiosulfate and water.