STAX Hybrid 39813 Monster Truck Blue building set with LED lights and sound

STAX Hybrid Monster Truck Blue 39813 building set with motion-activated LED lights and engine sounds. Includes 102 building blocks, 11 STAX blocks and a CR2032 coin cell. Compatible with the STAX system and standard building-block brands, including LEGO; not compatible with DUPLO. STAX blocks may have a weaker clutch than LEGO blocks. Front and rear lights and engine sounds activate when the truck moves. No external power cable is needed. Suitable from 6 years. WARNING: Choking hazard due to small parts and small balls. Not suitable for children under 3 years.