LEGO Dark Stone Gray Brick 6 x 8 with Open Center 4 x 6 (1680 / 32532)

LEGO Dark Stone Gray Brick 6 x 8 with Open Center 4 x 6 has been used in at least 2 LEGO sets over the past 19 years, since it was first used in 2005. You can also find this part in at least 13 other colors. It has a design ID of 32532 which can usually be found molded into the bottom of the part.