This is a clear ruler. What more can I say, dude. You can see through it completely. It has a metric scale on one side and an inch scale on the other. I'm not entirely sure of the accuracy as this is the only ruler I have. I'd say it's pretty good for measuring things. I doubt it's microwave safe and definitely not oven safe, but I'm pretty sure it's dishwasher safe. Well, maybe not, maybe melt. I use it to measure turtles. I love turtles man.