Estimate delivery : 8 ~ 10 business days, Free shipping Features: - Comfortable and elastic - High elastic strap, comfortable wearing, magic tap is sticky and firm, suitable for different leg shapes. - Easy to use - Easy to use and can be used anywhere at any time, instant self-heating products do not require electricity or external heat sources. Adjustable size for men and women. - Application sights - This knee brace can be used in the cold winter, suitable for people suffering from arthralgia, arthritis, bone hyperplasia, and leg muscle pain. It can also help protect your knee while doing daily activities and health care. Specifications: Type: Self- heating Knee Protector Color: Black Feature : Knee Protector Effect : Bone Care Package Included:1 Pair * Self Heated Knee Protector