Disposable body warmer is a kind of product that simply keep you warm for 18 hours, effective for back pain, neck pain, joint pa

Features:1) Ingredient: iron powder, water, activated carbon, cellulose and salt2) Max. temperature: 62°C (144°F)3) Average temperature: 52°C (126°F)4) Duration: 18 hoursInner packing:Size: 135 x 100mm (+/5)Outer packing:240pcs/ctnSize: 180 x 125mm (+/-5)