Ihuniu Power Twister Bar Dual Springs Super Heavy Duty for Upper Body Arm Strengthening
Features:100% New Brand High Quality Original GuaranteeMade by latest safety dual spring-quality carbon steelsSecond Spring keep much safer when exercisingThere was a "second" noise when it be released.Perfect for building upper body strengthHigh grade steel with molded plastic gripsUntil Now Max Springs Power 80KG/176LB to Challenge your ExtremeSpecifications:Materials:Quality Carbon Steel Springs and Non-Slip Plastic HandleWeight:30kg,40kg,50kg,60kg,80kg for you choose.A. Please Make sure you have enough power to use the 50KG or 60KG or 80KG Level;B. Please Make sure your wrist wear the hand strap before  training.Prevent accidental injuries.