Slotted 4K Dolly 16 in x 16 in - 4000 lbs cap.Slotted 4K Dolly 16in x 16in 4000 lbs cap. Introducing the Slotted 4K Dolley, a heavy duty material handling solution that is designed to make your work easier and more efficient. With its compact 16 in x 16 in size and a weight capacity of 4000 lbs, it can handle even the heaviest loads with ease. Its flush top design ensures that there are no protruding caster nuts or threaded studs, making it easier to load and unload items without any