Features: Experience enhanced sanding efficiency with our 50piece 4 hole triangular sandpaper set, adapt seamlessly to corners and curves. Crafted from aluminum oxide, these sandpapers boast excellent heat dissipation with a 4 hole ventilation structure, ensuring durability and consistent performances across various surfaces. Tearoff diamonds for detail point sanding. Hole design eliminates clogging and aids dust extraction. Perfectly suited for woodshops, auto repair centers, home renovations tasks, providing smooth finishes on wood, metal, and plastic materials. For most mainstream triangular sanders, this sandpaper set ensures quick installation and replacement, saving valuable time during intricate sanding tasks. Specifications: Component:Aluminium Oxide Size: Approx.170x140x95mm/6.69x5.51x3.74inch Back base: back velvet Type: Sandpaper Grit:40Grit/60Grit/80Grit/100Grit/120Grit/150Grit/180Grit/240Grit/320Grit/400Grit/600Grit/800Grit/1000Grit/1200Grit/1500Grit/2000Grit Holes: 4 Package Includes: 50pcs/set 4 Hole Triangular Sandpaper note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.