Toddlers ages 4+ can recreate scenes from the NINJAGO Dragons Rising TV series as they learn to build with the Nya and Arin’s Baby Dragon Battle (71798) playset. The LEGO Builder app guides kids on an intuitive building adventure. They can save sets, track their progress and zoom in and rotate models in 3D while they build. The energy dragon measures over 5 in. (13 cm) high, 10 in. (25 cm) long and 9 in. (23 cm) wide to let kids enjoy fun with the playset wherever they go