Finished builds vary from small display or play elements about 3.5 inches (≈9 cm) high up to large display skeletons over 12.5 inches (≈33 cm) tall, with several sets around 10–11 inches (≈25–28 cm) assembled height.
Display-oriented sets are marketed as collectible models for adults and typically include articulated skeletons, display stands and information plaques. Play-focused sets emphasize hands-on features for storytelling—removable or destructible parts, vehicles, launchers and interactive action elements.
Materials are listed as plastic. Battery requirements vary by item: many building sets list “No Battery Used,” while some action-figure or electronic packs list small batteries (for example, 3 LR44 alkaline in certain listings).