Many sponges look similar on the outside, but not all give the same result and there can be big differences in durability. Only the top part of the rubbing part of the lower quality sponges, hand pads, has a rubbing effect. This top layer will soon wear off and the abrasive surface will lose its abrasive effect. The abrasive part of Vileda sponges, pads, contains abrasive material in every single fibre, which ensures the same excellent cleaning effect throughout the product's lifetime. The fibres will not rust, split or clog and are easy to rinse. Extremely powerful abrasive action with black abrasive. Not delicate surfaces