SANDING　SPONGY Trico’s sanding spongy are manufactured from a lightweight foam.are indispensable to the home handyman and makes light work of all sanding applications on metal, wood, plastics and paintwork. Due to its shape, construction and controlled flexibility the sanding spongy can operate in the most awkward places and can be used either wet or dry.our sanding spongy can be coated on two sides or four sides with difference grain. Size [mm] Item Code   Aluminum oxide Silicon carbide 100 x 75 x25 6510100 6520100 125 x 100 x 12 6510125 6520125 For additional versions or non–standard sizes，ask for trico’s support.