I just bought this thing(I dont know what it's called) to hold the pee pads in so Chiquito(my maltese) and Tinkerbell wont tear them up. My maltese is real good at it

so when I saw this thing i decided to give it a chance and now I have no more messes

Tinkerbell likes to move them around and sometimes will try to play with them but now she can't

Has anybody seen these before??