After an intense month of use in my log cabin I must say I could not have imagined winning so much time. The I used a hand or abrasive especially for curved stairs (ramp) the machine did the job thanks to marrying any abrasive surface. Brilliant and effective. This sanding roll is perfect for all types of sanding particularly for small areas and difficult to access. Its ergonomic design and comfortable grip thanks to the rubber surfaces are safety features. The product is fairly light with 1300 gr. The speed can be adjusted continuously through a wheel which is important for surfaces requiring only a light sanding. The product connects to any type of vacuum cleaner which is very convenient for work indoors. The accessories can be changed quickly thanks to the SDS system. I have not seen an equivalent product on the market that allows for sanding curved surfaces. A true multifunctional and practical tool!