A customer gave me these a few years ago, they are a plastic disc approx 9" diameter and have a solid foam centre. You place one under each corner?leg of a wardrobe or cupboard and yuo can slide it out of the room single handed
there good for moving fridges on vinyls also .. i have some that are 50pence shaped but do the same thing as your moving men ...
no the bottoms have a silicon pad on them that stops them from marking anything ... i'll get a pic of it tomozz and show you ..
mine are different to the pic above, mine are square teflon pads. I have never tried them on vinyl due to i guessed they would mark. maybe not?