The construction set measures 19cm in width, 12cm in depth, and 10cm in height, making it a compact addition to any collection. It comprises 347 pieces that form the AT-ST Walker, a speeder bike, and three distinct minifigures including the SMART Wicket, an AT-ST Driver, and a Scout Trooper. Two SMART Tags are included to facilitate connection with the LEGO SMART Brick, which is sold separately. This configuration enables motion-activated features such as engine noises, walking sounds, and laser-shooting effects for the AT-ST and speeder bike. Builders can utilise the LEGO Builder app to access 3D instructions that allow for zooming and rotating views of the model. The app also provides the ability to save and track progress on the build. This set is suitable for ages 8 and up and fits within the broader SMART Play ecosystem when used with compatible All-In-One Sets such as 75421, 75423, or 7547. Dimensions of 19cm width, 12cm depth, and 10cm height ensure a manageable footprint for play. A total of 347 pieces are required to assemble the complete AT-ST Walker and speeder bike. Compatible with the LEGO Builder app for 3D viewing of instructions and progress tracking. Includes 2 SMART Tags to activate sounds and lights when paired with a separate SMART Brick. Contains minifigures of SMART Wicket, AT-ST Driver, and Scout Trooper for role-play. Suitable for children aged 8 years and older. Designed as part of the SMART Play series compatible with sets 75421, 75423, and 75427.