2. Like a dumbbell, it has two limbs relative to a barbell, so it can do more movements than a barbell to stretch our muscles more. Its flexibility is very high, so its stability is poor, and it can improve the stability of our whole joint when we often exercise with dumbbells!

3. Then there are some special gadgets, such as functional training and comprehensive training. For example, the agile ladder is a soft ladder laid on the ground to increase the coordination of our joints and the speed of practice.

4. There are also wave balls and yoga balls, on which we can do some exercises by standing or kneeling. Then these exercises can be stable isometric training or dynamic resistance training, which can produce such an effect in an unstable environment and increase our entire core strength and overall posture control ability for our body, including physical training.

5. There are tactical ropes, two thick ropes are also common in our fitness, and there are a lot of claw ropes, such as T2X, and even explosive training requirements such as throwing.