GodHand brings sturdy sanding boards made of stainless steel. Use with adhesive backed sandpaper, or sandpaper with double-sided tape to have a flat sanding plane to sand your models. Each file board is 6mm wide and 2mm thick, ideal for surface preparation in small places! The square edges are slightly chamfered to prevent damage to parts. Ideal weight of each sanding board feels great in your hands! Each Sanding Board Dimensions: 113mm (4.44") length, 6mm (.23") width, 2mm (.078") thick.