This sale is for a pair (2) of replacement props for a Weatherguard  toolbox . They replace Weatherguard part #7010. They will fit  OLDER model’s 174 and 184. They are the same size and strength as the ones Weatherguard sells for $50 each (recommended retail). These are made by Suspa in USA. THESE ARE THE 12 INCH PROPS.  IF YOU HAVE THE NEWER BOXES WITH THE 17 INCH PROPS , YOU NEED WEATHERGUARD 7095 .  If you need new 10mm ball studs, check my Ebay store. If you are not sure what toolbox you have or prop number you need, check the WEATHERGUARD web site, contact me, or check the fit chart in the listing photos..