This is my first design and upload, so be gentle…   

I designed these based off a set of Campco RV leveling blocks I had.  I made them full size to make sure all dimensions were correct, then I scaled them down to 50% simply to use under little things while camping.  The Blackstone, the picnic table, ect.   I wanted a smaller set that does the same job without taking up the space of a full set. The files are full size, scale them if you wish or keep them large. I printed them in PETG with .18 layer height and 3 walls.  The handle I printed at 100% infill and the blocks at 50%.  

I'm uploading two versions of the block, one with threads that goes on the bottom of the stack to lock them all together when the handle is screwed in.  A complete set is nine regular blocks and one threaded. 

The handle is in two parts, slides together and gets a small pin.  I used a couple little pieces of filament and glued them on each side.   Additionally, the full size handle rod was too long for my printer, so I added a version of it cut in half which can be glued together. If you are scaling it or have a larger printer, you can just print the one piece version. Both will open, just remove the one you don't need.  When scaling, make sure to scale everything uniformly as not to change the thread design.  And last, these held a lot of weight for what I was using them for, but please don't trust them with anything that could get someone injured.  Printer settings are different, material is different, etc. I'm not responsible for whatever you put on them.  

Happy printing.