heating device water bottle rubber with soft cover 2 liter water bag for cramps pain relief removable cold pack bed warmer

easy to us water bottle with wide mouth design prevents you from being scalded when pouring water it is very conveniently quickly safely pour the water into the water bag without overflowing please pour two-thirds of water at 80 degrees note do not use microwave to heat health materials the water bottle is made of natural high-quality rubber which is non-toxic harmless the explosion-proof heat resistance aging resistance of natural rubber is much better than pvc safe & reliable]the rubber water bottle has passed the 24-hour explosion-proof and leak.syi