The Z-Lite Double Kit is a combination of our Z-Lite and Z-Lite Double. It comes with (2) 7" M/F Rods. The Kit is a total of 11lbs of counterbalance weight to balance camera packages. The good thing about the kit is you can have a 3.5lb counterbalance weight, 7lb counterbalance weight or a 10.5lb counterbalance weight depending on your camera rig. It slides onto 15mm rods, either both rods or on one rod. The Z-Lite is stainless steel with rubber o-rings to prevent hard contacts. A built in lever makes for easy mounting and removal.