LEGO Medium Stone Gray Turntable 4 x 4 Square Base (3403)

LEGO Medium Stone Gray Turntable 4 x 4 Square Base has been used in at least 4 LEGO sets over the past 20 years, since it was first used in 2004. You can also find this part in at least 11 other colors. It has a design ID of 3403 which can usually be found molded into the bottom of the part.