Secure Hold: The U-shaped cradle wraps around the spring, while the insulated sleeve dampens metal‑to‑metal contact and reduces squeaking Multiple Fixing Points: Five screw holes along the base let you distribute the load, keeping the spring anchored even under repeated compression Rigid Core: The metal insert gives the clip its strength, so it stays clamped on the spring without bending open under weight Quieter Operation: The plastic coating isolates the spring from the frame, cutting down on noise transferred through the furniture Versatile Use: Works with different spring gauges for both seat and backrest applications in upholstered furniture, Manufacturer: Qvorlth