Great product for this price range. Yes, it's plastic, but still within 1 degree of accuracy. I will use this to get closer to the final angle of my first cut, which will save material and time in my projects. FYI they will be updating their packaging soon to fix some minor typos/instructions. The seller was very quick to dispatch and responsive to some of the comments and suggestions I made. I have bought from them before and will continue to do so.