General description Velcro Sanding Discs Delta Sanding Triangles are designed for efficient and precise sanding of various surfaces including wood, paint, varnish, plastic, plaster, and metal. This set includes 25 sheets of sanding triangles with a grit of 40, ideal for both large and curved surfaces. The self-adhesive backing ensures a secure fit on delta sanders, allowing for quick changes and ease of use. Technical specifications Size: 90 x 90 x 90 mm Grit: 40 Material: Long-life corundum, resin-bonded Number of pieces: 25 Holes: 6 Usage Suitable for sanding metal, wood, and other surfaces. Ideal for both flat and curved surfaces. Designed for use with delta sanders. Other information Observe the safety instructions for your grinding device. Use only by individuals who have received professional training. Minors should use under the direct supervision of an adult.