The york sts glute ham machine offers a multi functional capability which enables the user to perform both hamstring lower back and abdominal strengthening exercises key features of the york sts glute ham machine the twin pad design maximises users comfort 70cm of adjustments by way of 29 positioned holes along the 50mm squared chrome guide bar both the 230mm diameter thighhip 2 piece roller and the 140mm diameter ankle stabilisers adjust vertically by 8 positions and 7 positions respective