Product description: 1.Green PVC material, bold steel spring, strong and durable, thick foam, high density leaf spring, easy to slim down, safe to use.2.Our products are suitable for all ages and fitness levels. To make yourself better is our goal.3.S-shaped curve, compact design, lightweight and portable, let you shape your body anytime.4.Beautiful, flexible, and always ready for your strength training when you are sitting at your desk and working, or even watching TV on the couch.5.Improve joint flexibility and mobility. Simple and versatile Training Tools for Workouts at Home, Outdoors, or On the Go.Exercise the thighs: Step 1: Lie on your back on a yoga mat.Step 2: Bend your knees to about 45 degrees. Your feet should be flat on the floor.Step 3: Place the training tool between your inner thighs. The position of the training tool should make it look like an inverted V shape.Step 4: Squeeze your thighs. Even if the training tool moves only a few inches, you will still exercise your thigh muscles. As time goes by, when using the equipment, squeeze hard to move the device further inward.Step 5: Complete 15 to 20 repetitions. To increase strength, perform slow repeats or pause a moment when each repeat reaches the maximum level you can do.Exercise the Arms and Chest: Step 1: Hold the handle of the equipment in front of you. You can sit or stand.Step 2: Make sure equipment is positioned correctly as you push inward, so that the middle of the V shape pushes outward, not inward or toward the chest.Step 3 : Push the handles together while moving your elbows to the sides.Step 4: Complete 15 to 20 repetitions.