8 Word Multifunctional Power Wrist Device Hand And Forearm Trainer Gripper Exerciser Strengtheners Muscle Fitness Sports|Power Wrists(Black) Features: Benefit - Help you build lean,defined lower arms,strength the wrist,arm,and shoulder power,develop strong flexor muscles and larger extensor muscles,hand grip will work more muscles,reduces strain on joints ✅ Ergonomic product design - Soft grip shoulder,density foam cover to make you feel more comfortable when used ✅ Easily Portable - Accessory to complement the gym home training system,encourages more natural arm and shoulder movement that traditional push ups ✅ Lightweight & Easy to carry - Design with steel spring resistance,which is suitable for home,office,gym,exercise to use ✅ Materials:ABS, foam, spring steel inner core,Color:Black:5kg Package list: 1*Power Wrist