EVERYTHING STICKS TO THEM. It is like they collect all the dirt in the house or something. Its is more like a mini size shag rug but mini little balls on the carpet. The grip on the bottom is not great so they are not good for restroom. The very first day I slept on them so new my kids would. I ended up putting mine in my daughter room which I pick up daily and cleaned these rugs daily :P drove me nuts.