Enter in Chemical plant world! Build Sonic and Knuckles figures, their speed vehicles and this racing stunt playset. 1 buildable racing playset; Sonic and Knuckles buildable figures; 2 motorized vehicles to build; stickers to customise vehicles and tracks; decorations; screwdriver and assembly instruction. Combine this set with other sets from the range to build even bigger stunt park! 150+ parts included. For children from 5 years old.