... for Fitness Machine, Aluminum, Big Spring Ring, Stroner Magnet. Quality Higher and Best Performance. T-Handle Fitness Quick Locking Pin BLB53For various ... strong magnet, easy to operate, but better preformance.Using thicker spring and big rings, more stronger during usig.Finish: Zinc plated ... with ICON, KAMWAY, ATHLETIC, TECHNOGYM, etc. Any inquiry welcome!! T-handle Fitness Quick Release Pin