I first ordered this product from Griot's Garage many years ago. It is excellent for cleaning lubricants and liquids. Essential when changing the oil. The holder is useful because the rolls are a custom width (15 inches), wider than paper towel rolls. The magnets on the holder are ridiculously inadequate in both horizontal and vertical positions, even with 100% contact area with the steel surface. My solution is to use three zip ties to attach it to the shelf bar. Please note that this item contains three (3) rolls, not two (2) as shown in the product image.