Review on Chalk Marker: Bold White Liquid Chalk Pen With 2Mm Fine Tip For Writing And Drawing - Erasable Chalkboard Label Chalk Paint Pen - Wine Glass Marker by Kristen Simpson

Caution! This pen is NOT suitable for regular blackboards. I'm not sure why the sellers aren't more specific about this. I used this on a Pottery Barn chalkboard tile and it doesn't wash off completely. If you read the product description it says it will "rub off" on non-porous surfaces. Obviously they expect the average consumer to know that regular slate is porous. Well I guess I've been updated now. It ruined my board. Don't make the same mistake I did; Only buy it for items you are sure are "non-porous". The pen writes beautifully, so if you know the surface you're using is fine, you'll probably be happy. It's a very short and thin handle, I don't know how long it will last and might not be easy to hold well in large hands. It was difficult for me to hold and I have small hands.