1. Multifunctional training sandbag: Fitarc sandbag workout bag is a multifunctional training equipment, which can realize weightlifting, fitness and cross training, improve muscle endurance and explosive power, and can be used to exercise deltoid, biceps, quadriceps and core muscles. 2. More options: Fitarc sandbag fitness bag has two colors of black and green, and three models of 50LB, 100LB and 150LB are available. 3. Anti-Sand Leakage: Fitarc sandbag gym bag is made of durable composite fabric, using metal zipper and inner and outer two-layer velcro closure, triple protection, effectively avoiding filling leakage. 4. Sand Not Included: Sandbags can be filled with materials such as gravel, iron sand and soybeans, and the filling port is widened for easy filling. 5. Sandbag After-sales Service: If you have any problems with the products you receive, please feel free to contact us at any time.