Holds up to five times longer than standard sandpaper. Sometimes there is no alternative to hand sanding. The problem was that conventional sanding sheets wore out quickly when sanding curves and edges. They often became clogged or broke. The only solution was to buy many sanding sheets, leading to high consumption and a lot of waste. Today, there are sanding foams with Bosch Surface Structure. The Bosch Surface Structure combines advanced techniques for bonding and surface coating to optimally fix the grain on the backing. It is so strong that the Bosch Expert Flex sanding pad does not lose its grit when sanding around edges and corners. Additionally, clogging of the sanding sponge is minimized, as dust can simply be knocked out or washed away. There are also shapes for even pressure on the surface. The wide, extra-flexible sanding sponge is ideal for conforming sanding on all surface shapes. The Bosch Expert Flex sanding pad is a revolution in hand sanding. Once you use it, you will never want anything else. Length: 98 mm, Width: 120 mm, Height: 13 mm, Dimensions: 98 x 120 x 13 mm, Grit: fine.