Resistance tubes have been shown to improve muscle strength, growth, and function. They are very light or extremely high resistance.
Yellow (4.5 KG), Blue (9 KG), Red (13.6 KG), Green (18 KG), and Black (22.6 KG).
– EXTENDED 60 DAYS REPLACEMENT, REACH OUT TO CUSTOMER SUPPORT IF IN CASE YOU FACE ANY ISSUES FACED.