... slim, tone, and firm your muscles. 2.The home gym material is high pp pvc. 3.the packing is: ... both young and old people 3) Can increase muscle mass, strength, endurance, power, And definition 4) Fully transparent, half transparent ... as much as ID comfortable, slowly begin rolling the machine back toward your knees, emphasizing the re-curling of ... beginning any exercise. Roller Slide With Watch Home Gym