HEXpave plastic permeable paving gridVodaland's HEXpave plastic permeable paving grid system has 1" in height and can withstand medium loads when filled with gravel which is equivalent of a load class B (residential parking). Our HEXpave system provides many options: TRUE Lock Connection you simply snap them together and hear a click when they are firmly connected. Very simple and reliable connection. Can be manually unlocked if needed. Our HEXpave grid system has micro abrasion on the