This is the Cartoni L502 Tripod, made of aluminum and featuring a 100mm bowl-base, 2 leg stages, 132 lb payload, and quick and secure flip-clamping system with safety locks. The feet feature threaded spikes that support optional adjustable rubber feet as well as dollies and ground spreaders. The L502 also supports a mid-level spreader, but it would require optional pivoting tripod feet when incorporating one.
In the Box
Cartoni L502 Aluminum 2-Stage ENG Tripod Legs (100mm Bowl)