Yi Quan is one of the excellent boxings of Chinese Wushu and favored by Wushu fans from around the world. After a period of Stance Training, you can start the training of Tentative Force. Tentative Force stresses on slowness and gentleness rather than speed and hardness. To exert tentative force, you'd try to find out the right feeling of expressing force, and to develop the arms as nimble and strong as two boas through the training as if swimming in the air. You'll get a better effect when alternating action with inaction.This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply.