Here is a training sled that lets you attach fitness ropes to push your body hard. It is durable and can be loaded with plates or custom weights. The 3 in 1 Weight Training Sled supports sand bells, plates, and kettlebells.
The Railyard Weight Training Sled and Anchor comes with an optional steel push handle that lest you use it as a Power Sled. It measures 36″ x 18″.