At least the adhesive backing is worthless on smooth surfaces.

Great assortment and value for the price. Really works nicely. The really tiny ones are kind of useless but it's worth it to get this pack.

It protects the floors and makes heavier things easier to slide if need be. Used under chairs, bed, side tables, dressing. I but these on all my chair legs to protect my hardwood floors.

These pads are not the thickness as advertised. The glue on these pads is horrible.