Bought these for an old Gorilla wagon. I had no idea this size was so common; Fits my handcart, my wheelbarrow and probably more of my stuff that I haven't looked at closely. TIP: The bushings of the old bearings don't sit well in the rim. I have pieces of steel tubing lying around that might "knock out" them, but I've seen something snap or scratch me in the process, so I tried an old bike bottom bracket tool (search Park Tool). BBT-90.3) and it was PERFECT for the job. $46 seems expensive for this tool, but it definitely made the job easier and I will definitely use it again for this purpose (maybe look for a cheaper alternative).