This is how the magic happens! Adjust weights quickly to keep workouts flowing by using the pin to select different rails. For example, moving the pin to the bottom selects all the weight plates. The pin is super strong polypropylene and rated for a 500lb. Carefully remove the inner weights and put them in the storage slots on the stand. Then drop the handle back in the weight stack to close the lever, or do it manually. Features: Urethane coated steel plates provide smooth and quiet performance The open draft of the interior surface maximizes the range of motion and increases ergonomics with the contoured rubber grip The 'Auto-Lock' lever on the handle is a simple way to make micro adjustments in 2.5 lbs. increments by removing two chrome ballast weights within the lower tubes. To remove the inner weights tilt the handle back so the weights don't spill out, then pull The color bands on the rails correspond with the weight chart on the handle to show what will be selected This is how the magic happens! Adjust weights quickly to keep workouts flowing by using the pin to select different rails. For example, moving the pin to the bottom selects all the weight plates. The pin is super strong polypropylene and rated for a 500lb Carefully remove the inner weights and put them in the storage slots on the stand. Then drop the handle back in the weight stack to close the lever, or do it manually. The color bands on the rails correspond with the weight chart on the handle to show what will be selected To add the weights back into the handle reverse the process.