Hand made Yard dice, each dot counter sunk in the die, & each dot is hand painted. Each die measures 3.5" cubed & they are all coated in a urethane to protect against moisture, UV rays & extreme temperature changes temperature change. They can can be used as a novelty in an office, gaming business, man cave, or you can buy 6 so you can play the yard games Farkle & Yard-zee. I would not recommend using them on a hard surface. If you have any questions please feel free to send me a message. Handmade Yard Dice