This is so fun! Chalkboard tiles w a grid pattern by Pental. It actually works well w chalks. Comes in 24"x24", around $18/sf retail http://www.pentalonline.com/lines/porcelain/paper I can see them in kitchens, kids bathrooms or playrooms. Having tried all different chalkboard paints and been very disappointed, this is exciting! #chalkboardpaint #chalkboard #kidsroom #wallwithgrid #pental