materials and build quality: The leg extension and curl machine is constructed from quality steel and features extrathick foam rollers for comfortable, durable use. The leg extension attachment provides a strong loadbearing capacity to support a range of users. Spacesaving design: This unit has a compact footprint with a lightweight, detachable construction that is easy to set up, store, and move. Ideal for home gyms or spaces with limited room. Adjustable: Eight levels of adjustment are available to the setup according to general height and exercise requirements, promoting proper alignment and comfortable range of motion for both leg extensions and leg curls. Compatibility and sizing guidance: The machine accommodates hole diameters of 0.6' (16 mm), 0.7' (18 mm), or 1' (26 mm). It is suitable for squat racks with widths of 2', 3', or 2.37'. Practical use scenarios: Home gym routines: perform targeted leg extensions and curls in a compact, spaceefficient setup. Small gyms or studios: quick to assemble and detach, easy to store between clients, and fits into limitedfloor plans. Progressive training: use the 8 adjustment levels to tailor height and movement for different levels of users from beginners to more advanced ones, supporting gradual progression in leg work.