10/1pc Heavy-Duty Spool Clamp Protector With Threaded Lock - Suitable For All Spool Sizes (Internal/External Thread) - Multi-Color, Pipe Connector, Suitable For Automotive, Hvac, And Piping - Compatible With Standard Valves And Pipe Fittings, Winding Bobbin Clamp, Prevents Spool Ends From Falling Off, Spool Retaining Clip, Spool Retaining Roll, Silicone Bobbin Ring.