The TUG measures 9x30x36 and is made out of a rubber-like resin that is firm, yet flexible. Each device has two handles on opposite sides and has the capacity to hold up to 15 gallons of water, which creates a way to harness inertia. By putting 10 gallons of water in a 15 gallon container, there is room for movement, therefore creating inertia. The Tug creates a challenge that is unlike any traditional static weight. The Tug can be ordered in any of 9 different colors, Black, Royal Blue, Light Blue, Red, Yellow, Green, Purple, Maroon and Orange.