When you need to sanding the inside of your wood-turned bowl it can be a challenge to keep the wood from showing scuff marks. Using a piece of handheld sandpaper can also be somewhat dangerous. Our bowl sander essentially fixes this issue by having a dual bearing, smooth rotating that spins with the rotation of the bowl while the bowl is rotating on the lathe. The 11.8-inch long handle also helps keep your hands out of harm's way. The assembly is completely adjustable so it can be set to any angle that you need depending on the size and curve of your project. Unlike most other bowl sander assemblies, It's all about the pressure, or more like, it's all about the light pressure and consistent technique. When sanding with the 1-inch (2 inch or 3 inch)bowl sander, applying too much pressure will likely produce some unsightly results. By applying light pressure and consistently moving the sander, you will achieve the results you are looking for in a fraction of the time it typically takes when hand sanding your project. The assembly is also capable of accepting other size as long as the mandrel/shank size is 1/4 inch in diameter. Please be aware however that some manufacturers say 1/4 inch in diameter when in actuality the diameter is either smaller or slightly larger. We have included the most common diameter sanding with the bowl sander. This sander is made from a foam material that gives just enough to provide you with wonderful-looking results each time you sand your projects. Different batches, there are color differences between the actual product and the picture, the wood grain style is random, don't accept the specified Colour:Photo Color Material:wood Package Contents: 1 x Bowl Sander Sanding Tool 3 x sanding discs (1 each for 1/2/3 inches) Only the above package content, other products are not included. Note: Light reflection and differentdisplays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.