Anping county, Hengshui city. Gripper, also known as hand strength device, finger strength device and dynamometer, is a small fitness equipment to exercise people's wrist and arm strength. Wanggezhuang Village, Anping Town, Anping County, Hengshui City, has a gripper for sale. Hengshui, a prefecture-level city in Hebei Province, is located in the southeast of Hebei Province, with a total area of 88 15 square kilometers.