Multifaceted linear training device

A weight lifting device with a modular standard interface which can provide a combination of dead, dynamic, or progressive resistance training with no need for additional infrastructure. Whereas:

• Weight meaning the central core of this device and may include one or any combination of the following:
• chain, shot, sand, rubber, or an impregnated woven fiber;
• Lifting device meaning two separate vessels or conveyances;
• a means with which to contain the weight;
• Standard interface meaning a number of handles, buckles, clasps and straps;
• Dead meaning static, similar to a rock or dumbbell;
• Dynamic meaning constantly changing, much like reeling in a large fish or walking four city blocks with a bag of groceries swinging in each hand;
• Progressive meaning gradually increasing in weight and then subsequently decreasing in weight;
• the increase is experienced as the weight is incrementally lifted off of a surface followed by a decrease as it is then lowered back down to said surface;
• Infrastructure meaning that which is found in a professional gym, i.e. weight racks, dumbbells, barbells, rubber floor mats, stationary gym equipment, and sound dampening walls.