Introducing the 2x Heavy Duty 10kg Rated Orange / Black Sandbag! The Spectrum Heavy Duty Sandbag is a 10kg rated empty sand bag that features double zipper compartments on both sides for additional protection. The sand bag is provided empty which means you're able to place your own weighted items inside, including lead shot, sand, gym weights, bottles of water etc.. (all not provided and sold separately). The bag is blue and black or orange or black in colour for higher visibility.