Using a block method (patent 10-1518197) instead of replacing the weight disc with a Smith machine rail method, the weight pin controls the weight, adding convenience and safety
Successful miniaturization of installable in small places such as home or crossfit, frame is a home load with 2.9 club frame to add robustness.
As an option, bench, block weight (up to 30kg) can be added to the basic specification, and it will be used in various ways depending on exercise intensity up to 90kg.