uxcell M18 Pull Pin Spring Knob Replacement Parts for Home Fitness Height Adjustment Screws Equipment Black

Features：1. The portable size makes it easy to carry along.2. The retractable spring could do a great job.3. This ball shape spring lock comes with delicate workmanship.4. Made of ABS it is sturdy and durable5. A good accessory for indoor cycling bikes.Specification：Material: Steel and ABSColor: BlackScrew Diameter: M18 x 1.5Screw Length: 20mm/0.79"Shaft Length: 11mm/0.43"Total Length:65mm/2.56“Shaft Diameter: 10mm/0.39"Max Diameter: 54mm/2.13"Package Included:1pcs x Pull Pin Spring Knob