Let your young aspiring engineer enjoy hours of building fun and imaginative playtime as they assemble the pieces of the TT Light Kit for LEGO 40573 Christmas Tree 2-in-1.

Key Features

• Features a wide range of light and sound effects for added realism
• Conveniently comes with a step-by-step instruction
• Set includes 24 assorted light bits, 9 strip lights, 1 effect board, 4 expansion boards, 4 connecting cables, 24 assorted bricks, and a USB power cable (power source not included)
• Compatible with Lego

Note: This is a light kit only, the corresponding Lego® set is not included.