I bought a load of the Lidl kits the other day. I want to put them under my staking boxes, so I can move them out the way when I want to use my TS.
I am going to pop the black round bit out and fit the wheels to a piece of ply, which will then go under the boxes (stacked 4 high full of materials). By taking the black bit out they will not swivel but the wheels don't seem to lend themselves to swivelling when under load anyway.