Introducing the 4.5 Inch Sanding Sleeves Assortment Pack by POWERTEC. These spindle sander sleeves variety pack was designed to give your surfaces the perfect finish they deserve. Commonly used for sanding & polishing curves, material removal and resurfacing, these sander accessories work effectively on a wide variety of non-ferrous metal based and woodworking projects. Constructed out of aluminum oxide, these high performance abrasive sleeves feature a superior quality grain that delivers precision and professional quality results. This cost effective combo pack includes 4-1/2-Inch sandpaper sanding sleeves in 6 sizes and in three different grits to ensure you have exactly what you need in for perfect woodworking craftsmanship. COMPATIBILITYFor use with most oscillating and spindle sanders.For best results and brand specific match, search Amazon for POWERTEC MODEL OS1400 & OS1000 In 6 Different Diameters: 1/2 Inch 3/4 Inch1 Inch1-1/2 Inch2 Inch3 Inch Assorted Grits:80 grit sleeves120 grit sleeves240 grit sleeves POWERTEC is a professional manufacturer of high quality woodworking machines, wood work accessories, and a wide assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the best innovations, technologies, and product development to the industry.