After reading the Black Cover review on these Rite in the Rain ideas I decided to try some out as the idea is great. Having a notebook that can withstand all the water you throw at it is a trusty thing in my books. They come in great colours, include a handy ruler as well as a conversion table. There are solid horizontal lines along with dotted vertical lines. As soon as these came in I tossed them in the rain barrel outside to test them out and they passed with flying colours. I also got a Rite in the Rain pen that will write in all conditions.