Most of the droid building sets are intended for ages 10 and up; at least one collectible droid set is labeled for adults (18+).
Product details list the material as plastic, and the set descriptions indicate that batteries are not required (noted as "No Battery Used").
Builders can change a droid's pose or display using removable or adjustable parts such as detachable legs, attachable tools and periscopes, adjustable antennas, detachable arms and a removable center wheel, plus movable heads and levers that trigger head movement.
Piece counts for these buildable droid sets typically range from about 569 up to 1,138 pieces; examples in the results include 569, 1,039, 1,050 and 1,138 pieces.
Many sets include a display stand and an information plaque; some stands are themed for anniversary displays, and several sets either provide space for a minifigure or include a standard-size figure for display.
Common play features include rotating or movable heads, detachable legs, arms and center wheels, and attachable tools. Some sets add lever-activated head movement or a hidden "burner arm," and one model's head spins automatically when the model is moved across a flat surface.
Most sets include the buildable droid model plus a display figure; several also include a standard-size droid figure or a minifigure, and one set includes a special 25th‑anniversary minifigure.
Finished model heights range from about 3.5 inches (9 cm) up to roughly 15 inches (38 cm). Listed values include over 3.5 in (9 cm), over 8.5 in (22 cm), over 9 in (24 cm) and over 15 in (38 cm); one listing gives assembled height as 15.04 inches.
Product descriptions reference the LEGO Builder app, which offers zoom-and-rotate viewing, 3D instructions and digital progress-tracking tools; one description also mentions the app's collaborative building features.
