Product review (1 stars): Didn't work for me... now I have expensive hockey pucks for?!
Bought these to prevent my washing machine from slipping all over the place on the tile in our laundry room. Well, they didn't do that... washing machine still 'walked', and worse, fell off these little buggers frequently, causing my washing machine to become uneven. I removed them and replaced with an actual rubberized anti-fatigue mat from Costco (which was cheaper than the 4 of these, btw), and now no more walking.