3D Printing Spool Rollers - Multiple Sizes

These are rollers intended for rolling 3D printing filament spools on. I'm sure there are other uses for them. They are intended for mounting with some tape or glue, whatever you want to use. A couple of the brackets could possibly be drilled and screwed. There are 9 bracket types. Only one is for the RollerWheel_Long. 2 are for the RollerWheel_Bigger. There are 4 rollers, 1 longer, one with bigger rims, and 2 shorter. Of the 2 shorter ones, one has a slightly smaller groove about .160 inche