GANAS leg curl machine comes with an adjustable seat cushion and adjustable leg pads to accommodate users of all sizes. Weight stacking features 10kg plates so you can build the weight you need. Additionally, the powder-coated finish ensures durability, making it an excellent choice for serious fitness enthusiasts.To strengthen your quadriceps with leg extension exercises, place your legs behind an oversized roller, grip the handles tightly, and lift. (legs attached to storage bracket)To work your butt and hamstring muscles, pull the extra-large pop-up pin and insert the thigh restraint to a comfortable position, sit down and wrap your legs around the 8-inch foam roller, then press down for a seated leg curl exercise .