Revoflex has Two easy-grip handles. 6-speed power strength resistance pull rope, 40 kinds of fitness action at home, office, outdoors can be used. Super elastic and strong pull rope. Suitable for women and men, shape a perfect body with it. Spending about 10 minutes on exercises every day, Core Double Wheels Ab Roller Pull Rope Exercise Equipment are a versatile, highly effective and inexpensive way to get in shape. Coming with a user manual with detailed fitness action pictures, easy to use.