Comes with a set of instructions for anyone unfamiliar to scribing and a great tool. I applied some heat shrink tubing over the tool to give it a softer grip. Works great and as intended

Scribing Tool- If you need to scribe, buy this tool. I made a few reasonable scribers at home, but this tool is just so much better. A cleaver designed blade , which cuts away plastic without leaving large ridges. I have re-scribed much of the 1/48th Hercules I am currently building, wish i had bought this sooner. As with most model making tools, they are too expensive in NZ , so being able to get them from the states is great - just wish the postage was a little cheaper.

Excellent for scribing, but also has numerous uses in scratch-building and diorama building...works well on styrene and resin.