Low level. Hao Ying Gold 30kg Arm Exerciser is the equipment for new people to exercise their arms. 30kg arm stick is easy for adults and belongs to a low level. Hao Ying Arm Arm is a product of Hao Ying outdoor brand, which belongs to Jingjiang Hao Ying Security Equipment Co., Ltd., and is mainly engaged in the professional production and processing of fitness equipment such as Arm Arm, Stretcher, Grip, Skipping Rope, Football, Fitness Clothes and sports balls, sportswear, handicrafts, equipment accessories and other products.