D-O has a unique shape, with a wheel at the bottom of the robot allowing the droid to roll around, but while the wheel moves, the head remains upright. This is clearly not an easy shape to replicate in LEGO bricks, yet the LEGO design team has managed to do so. The build has movable antennas and the head can be rotated 360 degrees.
Here is the official product description:
Spark memories of exciting Star Wars: The Rise of Skywalker movie scenes with this cool LEGO Star Wars D-O (75278) droid building toy. Authentic details of this lovable Star Wars character are superbly recreated with LEGO bricks and fans will be delighted by D-O’s 360-degree-rotating and tilting head, and posable antennas.
This LEGO set includes a built-in stand for the construction model, plus an information sign with a cute D-O minifigure to make an eye-catching display at home or in a workplace.