Review on The Master'S Atlas Grid TilesReversible Dry Wet Erase Battle MapRPG Tabletop Grid All Maps - 88 Tiles & 248 Tokens by Patrice Lippmann

After using this product my dungeons and dragons experience was multiplied by 100 times. As the GM I was able to actually visualize pretty much everything using dry erase markers and these tiles. Way better than a mat which I've used previously these tiles can make maps as big or as small as you want and since it's reversible you can have things drawn on both sides. I like using that to reveal what's underneath a roof or in an unexplored room. You do have to buy dry erase markers but those are really cheap and can be found at any dollar store.