Not atl, but close to it. The price on this drops regularly. I lost mine and needed another, so I set a camels alert and bought it. I hope you'll find the price drop useful as well. Keep in mind that these "universal" standard pens are not universal at all. They work with a lot of chromebook devices including the second gen lenovo duets that have been popular here, but check your device to make sure it's the pen for you. If anyone knows of a good compatibility chart for these pens, that would be awesome. Enjoy!
Here is a table showing which USI standard you may need for at least a few devices.
And here is a video explaining that USI 2.0 is backwards compatible (Thanks @mostlygordon)
Edit: It's dropped to 52.27 51.70
How long do the batteries last? Good price, but tempted to wait for a deal on a rechargeable model.