Professional resistance rings come with 5 different grades, all of which are 23.6 inches long and 2 inches wide, but vary in thickness. Depending on your training needs at different stages, you can match the exercise wristband to the corresponding resistance level, so whether you are a fitness beginner, or a sports warrior, the exercise wristband will be the perfect choice for you. All fitness programs are inseparable from resistance bands, stretching bands can be used for exercise, stretching, strength training, rehabilitation and more. Add your logo or message to customize. 1 location includes the shipping cost to US. Orders of 5,100 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.