[Upgraded Metal Adjustment Buckle]: Our pilates bar come with newly upgraded heavy-duty metal adjustment buckle and nylon rope with clear graduations. Just press the button easily, you can adjust the nylon rope to the desired length more quickly and accurately when training different movements. The adjustable ranges from 4.3 inches to 18 inches. Our pilates bar kit with resistance bands are suitable for those who are between 5.2′-5.8′ height to practice.