Battle Bands heled me get back onto the pullup bar after an injury. I used the big yellow one then after a week I switched to tye small yellow one plus the small green one then finally just the small green one. Yesterday day was my first day of full body weight pullups since September 15th. I did five sets of ten pullups all perfect form after watching Mike Eckert youtube videos on proper pullup form anyway I dod a total of 50 pullups in 23 minutes total elapsed time including 2 to 3 minutes of rest between sets.