The Pixel Ruler is a good tool to have for responsive screen size sketching. It is a heavy-duty gauge stainless steel ruler with pixel increments. There are markers on the ruler for mobile, tablet and widescreen (laptop) sizes.
I was supposed to give that ruler to Li Xiang for our 11th anniversary this Saturday. However, after placing my order for the ruler, I realised that I had already bought it for her 3 years ago on her 28th Birthday!
The Pixel Ruler’s price three years ago was only US$24 (S$34) and shipping to Singapore was only US$8 (S$12).
It was too late to cancel as it has already been shipped out.
I bought it on 5th October 2015 and it was shipped out the next day on 6th October 2015. I received it two weeks later which was yesterday, 20th October 2015.
The package comes with the Stainless steel ruler with 150 PPI (pixels per inch) scale, Zebra mechanical pencil and two UI Stencils Stickers.
The ruler measures 304.8mm (long) x 34mm (wide) x 1mm (thick) and have an EVA non-slip pad at the back. It is made in the USA.