LEGO White Left Staircase 6 x 6 x 4 (28466)

LEGO White Left Staircase 6 x 6 x 4 has been used in at least 1 LEGO sets over the past year, since it was first used in 2023. You can also find this part in at least 8 other colors. It has a design ID of 28466 which can usually be found molded into the bottom of the part.