dynapro exercise resistance bands, adjustable length, comfort handles, professional quality, anti-snap. great for workouts, physical therapy, yoga (red) dynapro bring the gym home with dynapro resistance bands. with the guaranteed highest quality professional grade workout material and premium d-handles, dynapro brings the top choice in exercise bands for personal trainers to your door. don't make the mistake of purchasing a low quality product that will discourage you from hitting your goals. dynapro products will last you a lifetime, these will be the last resistance bands that you ever need to buy. when performing the exercise, the band should be secured in a way so the length is appropriate to give resistance even at the bottom of the exercise. the adjustable connection will allow you to achieve this resistance. resistance bands are a great way to help achieve your goals when the gym is hard to get to. from early morning workouts to a quick vacation set, resistance bands are there exactly when you need them. the dynapro difference: highest quality 100% dipped latex. premium gym quality, comfort d-handle, adjustable band connection. approximate resistance equivalent: yellow 5-10lbs, green 15-20lbs, red 20-25lbs, blue 25-30lbs, black 35-50lbs.