For ease of use at the facility simple easy to use and robust spec
Power builder is recommended for use in facilities that one much more burdensome than home use.
Weld strength is pro proportional to the rauge(leugth)spot welding like a shoddy foreign products do not provide the regained strength.
If the base is small the impact of retuning the barbell can sometimes cause the beach to topple over The large base of the muscle builder bench is very stable.
The saddle which directly holds the barbell is made of sturdy 6mm thickness stainless steel (sus304) Back support is 22cm long it can be used safely by person of large build.
No risk of pad breakage or cracking as found on inexpensive benches, because the robust frame supports the pad.
Test at the Tokyo Metropolitan Technical research Center with a load of more than 1ton welding strength has proven.