It is free, full length GRE Practice Test with detailed explanation of every question. It will help you to check your preparation for GRE and familiarize with the actual pattern of GRE. By practicing this GRE Sample Test you can find your shortcomings and will give you an idea what to study to improve your score.
So what are you waiting for take the test and familiarize yourself with the GRE Pattern and structure.
Peterson's FREE GRE Practice Test
More on GRE